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Expert Answers about Trailer Lights


  • Recommended Replacement for Glo-Brite 122R and 122Y Lights
  • We have lights that are similar to the Glo-Brite 122R and 122Y lights but not exact replacements. I recommend the Optronics Clearance or Side Marker Trailer Light - Incandescent - Oblong - Red Lens # MC68RB and Amber Lens # MC68AB which are 3-1/2" long x 1-1/8" wide x 1" thick. I have added links to reviews of these lights for you to take a look at.
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  • Can Trailer be Swapped to LED Taillights Without Issues
  • All you have to do is swap the incandescent bulbs with LED replacement assemblies. Your tow vehicle would not have a problem at all with this switch. In fact, it actually would thank you if it could since now the trailer wiring will draw a fraction of the amperage it once did. So an LED taillight kit like the part # TLL9RK would come with everything you'd need. New assemblies, wiring and connectors.
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  • Tracker Boat Trailer Optronic Brake/Left Blinker Stopped Working Replacement Light Solution
  • Based on the number you listed the light fixtures you need is the kit part # TLL160RK for both lights or just part # STL116RB for right hand or part # STL117RB for left hand.
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  • One Wire Clearance and Side Marker Light Options to Replace Lights on Horton Hauler Trailer
  • We have quite a few different options for trailer clearance lights with one wire and that will ground through the mounting hardware. These lights come in various sizes and shapes. The best replacement for your trailer will depend on the size light you are wanting to replace. For a small LED clearance light that is a stud-mount, you can use the Optronics Sealed Mini Rectangular LED Stud Mount Trailer Clearance Light. For an amber light you will want # MCL95AB and for a red light # MCL95RB....
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  • Lighting Requirements for Trailer that is over 80 inches in Width
  • I attached a picture that shows what type of lighting requirements are needed for a trailer over 80 inches in width as well as a link down below that covers this as well.
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  • LED Light Replacements for Discontinued Wesbar Trailer Light 102640
  • The Wesbar trailer light 102640 has a sealed capsule so the bulb cannot be replaced. Part 403356 is a replacement capsule but this is no longer made. It is likely to be both easier and less costly in the long run to simply replace that light with LED lights # 271595 and # 271594. There are still incandescent lights available from Wesbar if you prefer, # 403026 and # 403076. All of our LED trailer tail lights are shown on the linked page.
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  • How to Wire LED Replacement Trailer Lights
  • If you are looking at and LED Trailer Tail Light like part # STL8RB, then you will not need a converter to make it compatible with the 4-Way Wiring Harness on your truck. You will need to figure out the wiring on your trailer to make sure that you get all of the wiring done correctly. You can use a Circuit Tester # I26 for that purpose. All you have to do is hook up your new LED lights using the following information. Brown is for tail lights Green is for stop and turn White is...
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  • Difference Between 1 and 2 Wire Trailer Clearance Lights
  • If where you plan to mount the clearance lights is metal that touches the trailer frame then a 1 wire clearance light would work just fine. The difference between the 1 wire and 2 wire lights is that the 1 wire lights ground through their mounting hardware and the 2 wire lights have to be run to a metal surface of the trailer that touches the frame or to the main ground of the trailer.
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  • Replacement Clearance Lights Needed for GLO-BRITE 122R and 122Y Lights
  • From what I could find it looks like your 122R (red) and 122Y (amber) lights measure 3.75" x 1.70" x .81". We don't have any replacement lense directly for the GLO-BRITE lights but we do have some similar lights that you could use as replacements. I recommend checking out the Command LED lights # 328-K-51 for amber and # 328-K-52 for red. These measure 3-3/4" long x 1-5/8" tall x 1/2" deep and have mounting holes that are spaced 2-1/2" apart on center. Attached are links to review...
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  • How To Replace a Trailer Clearance Light With One Wire Using a Light With Two Wires
  • If you are replacing a trailer marker/clearance light that only has one wire with a trailer marker/clearance light that has two wires like the part # MCL44AB that means the previous light grounded though the mounting hardware and the new light grounds with a single ground wire. Therefore, the ground wire will just need to be run and attached to the trailer frame. That said, I don't know which color has which function on your light so you will just need to test these for yourself if the...
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  • Recommended Lights to Increase Visibility on Hitch-Mounted Bike Rack
  • The Optronics Sealed, Streamline LED Trailer Light # STL79RB referenced in your question will work to provide an additional light on your bike rack, however there may be easier options. You might have trouble mounting the light assembly to the rack itself and the 3-wire design will not allow for easy disconnect when you are not using the bike rack. For an easier option, I recommend looking at the LED Light Kit # 98174LED. You can easily mount these to your bike by using the Mounting...
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  • How to Install a Three Wire Trailer Light
  • It sounds like your current lights with 2 wires ground to the trailer by the mounting hardware. The One LED RV Passenger Tail Light # RVSTL0060 has three wires, the white wire is the ground, the black wire is the taillight and the green wire is for your stop lights and turn signals. To hook up your lights you will need to splice together the taillight and stop/turn wires. Then you will need to take the white wire and ground it to the trailer itself. To ground your wire you will want...
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  • Can Single Wire Clearance Light Be installed To Replace 2-Wire Light On Travel Trailer
  • If a trailer clearance light like part # MCL44AB1 is used, the one wire is the power wire for the light and the light will be grounded through the mounting hardware. If you want to use the ground wire that you have on your trailer you can install part # MCL44AB. This has a 2-wire install, where one is for the power and the second wire is for the ground.
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  • Replacement Tail Light For Trail Star Boat Trailer
  • We have exactly what you are looking for. The replacement light we offer that will work for you is part # ST16RB. This is listed as an exact replacement for the Wesbar 3554 light on your trailer, which is the passenger side of the trailer. if the light you need is for the driver side of the trailer and has the license plate light then the light you need is part # ST17RB.
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  • Replacement Wesbar 102640 Trailer Light Assemblies
  • Your Wesbar 102640 trailer light features a sealed capsule so the bulb itself cannot actually be replaced. I recommend simply replacing the light assemblies with the Wesbar # 403026 and # 403076. These are the newer/current generation model lights to what you currently have. They measure 8 inches wide, 2-7/8 inches tall, and 2-9/16 inches deep. The mounting hardware is included and they do feature a sealed, waterproof construction. When needed, the bulbs on these assemblies can be easily...
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  • Installing LED Clearance Lights With 2 Wires
  • Two-wire LED clearance lights such as the Red # MCL32RB or the Amber # MCL44AB have one wire for the power lead and one ground wire. The wire that was attached to your old clearance lights will be spliced to the power wire of your new lights. The black is power and white is ground for these lights. If you take a look at the video I have linked you can see how these lights are installed. I have also attached a couple of links to help articles on trailer wiring which you should find useful.
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  • LED Tail Lights for a Ranger Trail XT188 Boat Trailer
  • I checked with Ranger and the current generation of the Trailer RT188 uses the 6 inch oval tail lights. For those the Miro-Flex Trailer Tail Light # STL22RB is a great option for an LED upgrade. These lights use pigtail # A47PB and will fit the mounts currently on the trailer. If your trailer has different tail lights, such as those that hang from studs then # STL16RB and # STL17RB are great options for that mounting style. If neither of the recommendations above are the light style...
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  • Preferred Method of Grounding Trailer Lighting Circuits
  • Running a direct ground up to the trailer tongue or junction box would certainly work, but the only time I'd see that as being necessary is if the lamps were connected to a non metallic structure or a metallic structure that wasn't directly connected to the trailer frame. If the lamps aren't connected to a metal structure in direct contact with the trailer frame, you can use a short length of # DW02359-1 wire with a # DW05702-1 ring terminal on each end to serve as a jumper wire that joins...
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  • Can the Capsule From Wesbar Light 102640 be Replaced?
  • The Wesbar 102640 has a sealed capsule so it could not be replaced. The part you listed, 403356, is a replacement capsule which is no longer made, and it would likely be cheaper in the long run to simply replace that light with LED lights # 271595 and # 271594. There are still incandescent lights available from Wesbar if you prefer, # 403026 and # 403076. I have added a couple of links to review videos which you may find useful.
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  • Clearance Light Replacement for Glo Brite 122-Y and 122 R Lights on Trailer
  • I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
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  • Replacement for Bargman 68 SAE-P2-A-81 Trailer Clearance Light 30-68-510
  • The Optronics lights, # MC48RB for red and # MC48AB for amber, are the equivalent lights to the Bargman 34-68-511 and 30-68-511. So they are not exactly the same but they could work depending on the application. The Optronics lights are 3-29/32" L x 1-27/32" W x 1-1/32" D and the mounting holes are spaced 3-3/8 inches apart on center.
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  • Replacement Amber Light For Brite Glo 118A/117R
  • For the same size light, we have the Rectangular Trailer Clearance, Side Marker Light with Reflector, 2 Wire - Amber # MC44AB or the LED version with 6 diodes # MCL44AB. These will both be 4 inches long by 1-1/2 inches wide with 3 inch on center mounting holes.
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  • How To Charge Trailer Battery On Dump Trailer Using The 7-Way Trailer Connector
  • You can provide a maintenance charge to the trailer mounted battery on your trailer via the 7-Way trailer connector's 12 volt circuit. But the wiring in that circuit is too small to handle the amount of amperage needed to charge up the battery. It is also possible that the alternator on the truck is not strong enough to push back that much amperage even with a larger wire gauge. So if you connect a wire from the 12 volt circuit to the battery on the trailer it will provide a maintenance...
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  • Trailer Left Side Running Lights Not Working All Other Lights Work
  • On many trailers the running light wires are jumped from one side to the other on the trailer. This is because there is a single running light wire only ran on one side. A wire would have to be spliced in on the one side, ran to the other side of the trailer, and connected to the running lights. If using a junction box, the one running light wire from the trailer connector can go to a single terminal and from there you can run separate wires for the running lights on each side of the...
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  • How to Properly Ground Trailer Marker and Taillights
  • Each lamp needs to be grounded either through its mounting studs being in direct contact with the trailer frame or by having a jumper wire ran from the lamp to the trailer frame. Ground the trailer connector at the front of the trailer, which will use the trailer frame as a ground wire. This method is the most simple and effective. You could run a ground loop, but if everything's properly grounded, it won't be necessary. I'll link you to our FAQ article on trailer wiring.
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  • Replacement Trailer Clearance Lights for GloBrite 122r/122y
  • The globrite 122 in red or yellow/amber are 3.75 inches by 1.70 inches from what I can find online. We do not have a direct replacement, however the closest dimension we have to replace them is 3-1/2 by 1 inch. I recommend the # MC68RB and # MC68AB. If you want to go larger, then I recommend the 4x 1-1/2 inch LED # MCL17RB and # MCL17AB.
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  • How to Wire a Stop/Turn/Tail Trailer Light With Two Wires to a Trailer
  • It sounds like you have a trailer taillight that grounds through the mounting hardware. Typically the red wire would run to the turn signal/stop light circuit and the black would run to the taillight circuit, and then the ground circuit would be complete through the mounting hardware.
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  • Replacement Tail Light Lens for Tracker Trailstar Trailer
  • The lights you have on your trailer are # ST37RB and # ST36RB. The replacement lenses are # A39RB for the front lens and # A37RB for the side marker.
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  • Troubleshooting Trailer Left Turn Signal Light That Does Not Blink
  • Its usually easiest to disconnect the trailer from the vehicle and test the trailer functions directly by connecting 12V power from the vehicle (or another) battery right to the various circuits on the trailer plug. This way of testing isolates the trailer from any issues that might be present in the vehicle wiring, such as a mis-wired connector. If you do this and the trailer light does not do what it is supposed to do, then check both your main trailer connector ground and the problem...
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  • Clearance Light Replacement for Glo Brite 122-Y Lights on Trailer
  • I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
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  • Installing Side Marker Lights on Trailer
  • The white wire with the ring terminal attached to the LED Trailer Clearance, Side Marker Light # MCL44AB needs to be grounded to your trailer's frame. It is typically a good idea to run all of the light grounds back to the main trailer ground. The black wire on the light will be spliced into the trailer's running light circuit. Traditionally, the brown wire on your trailer is the circuit the black wire will be spliced into, but using a circuit tester, like # 40376, is helpful to ensure...
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  • How do LED Sidemarker Lights Wire in to Trailer Light Wiring
  • When installing a sidemarker light such as this Optronics Trailer Light # MCL44AB you will want to splice into the signal wire for your trailer running lights circuit and then run the ground wire to a clean metal surface. The black wire will be the power wire and the white wire is the ground wire. I attached an FAQ on trailer wiring for you to check out also. I also attached a review video for this product for you to check out. This video shows how the light gets wired and looks when...
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  • Replacement Trailer Taillights for Bargman 30-91-010 and 30-91-011 Taillights
  • Based on the number you listed you would need the part # 30-92-001 and then for the side that carries the license plate you would want the part # 30-92-003 that has the license plate bracket and light to illuminate the plate. The difference in part numbers is due to the one side holding the license plate and the other not carrying it. Both of the lights have the needed wires to install.
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  • LED Horse Trailer Lighting Recommendations for Interior and Exterior
  • In terms of brightness the part # ILL08COB is really hard to beat as it's going to be the brightest option we carry. We do have the part # ILL06COB which costs a bit less but is still relatively bright. About half as bright as the one you mentioned. For a bright LED flood light you'd then want the part # TLL50FB for the porch type lights you wanted to replace.
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  • Recommendation for Submersible LED Backup Lights on a Boat Trailer
  • I can help you add reverse lights to your trailer. Yes, It is important to pay attention to DOT compliance when adding lights on your boat trailer. Compliance will be met if you use the Optronics # BUL10CB light as your backup light. The # BUL72CB is purposed for a utility light and will not meet the criteria for reverse lights on the roadway. In order to add reverse lights to your trailer would would need to have a 7-Way on the trailer and a 7-Way on the vehicle. On the vehicle...
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  • Troubleshooting Low Voltage/Dim LED Trailer Lights from New Harness
  • You will need to get at or very near 12 volts in order for the Optronics Trailer Light Kit part # TLL36RK to illuminate properly. What I would recommend you first do is check the grounds of the trailer and the assemblies themselves. You want to make sure the main trailer ground is connected to a clean metal surface on the trailer frame. This is the ground strap that runs from the connector on your trailer to the frame. The ground wires of the assemblies need to be connected to a clean...
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  • Why Would Trailer Wiring Only Ground Through Ball Mount on a Trailer
  • Typically what you described is due to an insufficient ground on the trailer and not the vehicle. You can try running the grounds of the lights back to the main ground of the trailer and that should fix the problem. Or if the main ground strap of the trailer is attached to a painted surface you could try removing the paint and connecting it to a bare metal surface. Or you can try testing the pins of the connector on your tow vehicle with a circuit test like part # PTW2993 using the ground...
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  • Installing Trailer Tail Lights with Two Wire Connections on 4-Way Wiring
  • They are single function lights, so they can be used as running lights or stop/turn but not both. So for your trailer to be legal, you will need to run two on each side, one for the running light (brown wire of your 4-way) and one for the turn/stop light (green or yellow wire of your 4-way depending on side of the trailer). You will attach the power wire (green, yellow, or brown) to the red wire of your light. The white wire on your light will go to ground, so you will attach it to the...
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  • How To Wire the Peterson Round Trailer Tail Light # 431800 to a 4-Way Trailer Connector
  • A 4-Way flat connector has the white wire for ground, brown wire for running lights, yellow wire for left turn and brake, and green wire for right turn and brake. The Peterson Round Trailer Tail Light, part # 431800, is a three function light and has two wires coming out of the rear. The brown wire is for running lights and the red wire is for turn signal and brake. The light is grounded to the trailer by the mounting studs on the light. The lights have to be mounted to the metal trailer...
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  • Bulb Replacement For a Peterson 440 Trailer Tail Light
  • Both the Peterson Right Hand # 432200 and Left Hand # 432400 Square Trailer Tail Lights use either a 1157 # 30-90-157 or a 168 Incandescent Bulb. I confirmed this with my contact at Peterson.
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  • LED-Type Replacement Trailer Lights for Featherlite Enclosed Gooseneck Trailer
  • Trailer makers do not maintain detailed specs on the smaller items like the lights they use in production of their trailers so you can refer to the linked page that displays all of our LED-type trailing lighting. Just click on the type of light you want - such as a side clearance light or a taillight - to see the products in that category. You can use the filters on the page to narrow down the items displayed to those with the shape, color and even the dimensions you need. You can also...
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  • Recommended Interior and Exterior LED Lighting for Enclosed Box Trailer
  • We've got the lighting items you need for your high school band's instrument trailer. I strongly recommend you opt for LED-type lights, rather than standard incandescent bulb lights. There are several advantages to using LED lights. LEDs use only about 1/10th the power required by incandescent lights. Their efficiency also means less waste heat, which can matter a lot in warm weather when the sun has already heated up the trailer interior. They also do not change color with age the...
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  • Replacing Bulbs in Submersible Trailer Lights.
  • On the # ST16RB trailer taillight, the lens is first removed by removing the 4 screws holding the lens to the lamp housing. Once the lens is removed, the 2057 bulb is easily removed by pushing the bulb into the socket, and twisting it a 1/4 turn, then pulling straight up.
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  • How to Wire 2-Wire LED Lights to Enclosed Trailer
  • No problem. If your existing trailer interior lights use a 1-wire hookup this means they use their mounting hardware to make the ground connection and the single lead is the +12V feed. Adding more high-efficiency LED lights with 2 wires will only require you to run that separate (white) ground wire to a suitable metal surface on the trailer (such as the surface the existing light are mounted to). The linked page will display all LED type interior white lights suitable for use in your...
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  • Options for Replacing Incandescent Bulbs with LED Equivalents to Reduce Power Demand
  • Converting an RV to LED lighting is a great way to both make it more visible and to reduce the power demands on your tow vehicle wiring setup. I have an alternative suggestion that you may like since it might save you some money and installation time. We have LED equivalent bulb replacements like # AR50368 and many others that can replace the most common incandescent bulb types. These offer a simple way to upgrade to LEDs without having to replace the entire fixture and this route often...
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  • How to Wire the Left Rear Camper Tail Light # 30-92-003
  • When wiring the # 30-92-003 Tail light with license plate light, you should only have one wire going to the turn/stop signal connection and one wire going to the taillight connection on each side of the trailer. The Left side turn/stop wire on the trailer is yellow, Right side turn/stop wire is green, taillight wire should be brown. On the left side you should connect the yellow wire from your trailer lighting to the green wire on the # 30-92-003 tail light, and connect the brown...
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  • LED Interior Trailer Light Recommendation for Enclosed Trailer
  • LED interior lights can be pretty easily installed on your trailer that will be powered by the trailer connector's 12 volt power circuit. The part # RVILL34 is a pretty common LED setup that would work well. It has a switch built in and two LED panels to produce light for the trailer. As long as your trailer is you might go with at least two depending on how bright you need it to be. The 12 volt power circuit of your 7-way is the 1:00 position of the 7-way.
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  • How to Provide Power to Trailer Reverse Lights
  • To connect back up lights you need to have a 7-way trailer connector on both your trailer and tow vehicle. On a 7-way the reverse lights are powered by the center pin. To connect reverse lights to the trailer's 7-way you can use 16 gauge wire # 16-1-1, or 14 gauge # DW07550-1 if you have a longer trailer. Both are sold by the foot. If you need reverse lights a couple of popular options are the Optronics LED Backup Light # BUL10CB for an LED that uses a 2-wire pigtail # A45CB to connect....
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  • Method of Bulb Replacement on Oval Red Grommet-Mount Trailer Taillight
  • Usually a grommet-mount incandescent tail light will be pressure-fitted into the grommet and held there simply by friction from the rubber. If there are no visible screws to allow lens removal and no accessible portion of the light's rear surface then its almost a sure thing that you'll just need to carefully pop the light out of its grommet. Ideally you'll have a tool that is strong enough to flex the grommet material but not so hard that it can damage the lens or base. The light in your...
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  • 12V LED Lights for Inside a Cargo Trailer
  • There are many 12V LED lights which are available for the inside of a cargo trailer. The thing about LED lights, however, is that you are never going to have to pull a light out of the socket and replace it with a new one. For example, the Optronics # RVILL34 is a surface-mounted LED light with 18 diodes, which is what provides the light. They last very long with just 0.6 amps of power draw and a lifetime warranty for the lights. You can see how bright the lights are by the photo I've added....
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  • Replacement Trailer Clearance Lights for GloBrite 122r/122y
  • The globrite 122 in red or yellow/amber are 3.75 inches by 1.70 inches from what I can find online. We do not have a direct replacement, however the closest dimension we have to replace them is 3-1/2 by 1 inch. I recommend the # MC68RB and # MC68AB. If you want to go larger, then I recommend the 4x 1-1/2 inch LED # MCL17RB and # MCL17AB.
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  • Replacement LED Flood Light for Load Lights on a Horse Trailer
  • The Opti-Brite LED Work Light # TLL60FB is a 2-wire light with black being power and white being ground. It will wire in to your trailer's existing wiring. As long as the current lights run on 12, 24, or 36 volt DC this light is compatible.
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  • Troubleshooting Trailer Lights That Blow Fuses When Connected to Tow Vehicle
  • If each light assembly is grounded individually there won't be an issue with mixing LEDs and incandescent bulbs on a trailer. What is most likely happening is that the trailer light circuit is shorting out somewhere on the trailer frame due to exposed wire touching the trailer frame. That is most likely why your fuse is popping. The main ground strap from your trailer frame to your trailer connector needs to be connected to a clean metal surface. The light assemblies ground to the...
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  • Using 7-Way Trailer Connector 12-Volt Accessory Circuit to Maintain Battery on Dump Trailer
  • If you have read our previous responses regarding the use of the 12-volt accessory circuit from the 7-way, then you know that the circuit can be used to maintain, but not charge a depleted trailer-mounted battery. We typically recommend using a battery charger like the # CTEK56353 CTEK Universal Battery Charger to recharge a depleted battery. The 12-volt accessory circuit should already be fused (or if the 7-way was installed aftermarket, protected by a 40 amp inline circuit breaker...
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  • Availability of a Trailer Light with SAE Number SAE AP2 01
  • The SAE number of a trailer light isn't always the best way to pick out a replacement light since that isn't a part number. But most likely you are looking for a # MC32RB which measures 4 inch by 2 inch. If not, check out the link I attached that has all of the trailer lights we offer.
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  • How to Change Bulbs On Wesbar Submersible Tail Light # 403075
  • The panel on the bottom of the Wesbar Submersible Tail Light is removable to allow access to the bulbs. Simply place a screwdriver in between the tabs on either end of the panel and gently pry upward. The lamp is not sealed, but is considered submersible because it has drain holes that would allow the water to drain out. You would want to unplug your trailer wiring harness before submerging the lamp.
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  • Trailer Side Marker Lights Not Working
  • It sounds like you do not have the side marker lights properly grounded. If the lights have a separate ground wire to attach to the trailer frame it will need to be connected to a suitable point on the trailer frame. The closer to the light the better. If you light does not have a separate ground wire then it is grounded through the mounting holes and you will need to be sure that the light is mounted directly to the trailer frame and making a good connection. Use a circuit tester,...
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  • Changing the Bulb in the Wesbar Tail Light Capsule
  • The older generations of the Wesbar submersible low-profile lights came with sealed light bulb capsules that are not replaceable. If your capsule is sealed, then your best option is to replace the lights with new lights like part # 403026 and # 403076. The new lights come with capsules that allow you to replace the bulbs. The bulbs used in these lights are # A1157B and # 193.
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  • Does Each Light Need to be Grounded When Wiring Trailer Lights
  • Yes, all of the lights in the # TL16RK Waterproof, Over 80 inch Trailer Light Kit will need to be grounded. The white wires on the tail lights are attached to the trailer frame, and the chrome bases provide the ground to the trailer frame through the mounting hardware for the side marker lights. You will also need to attach the white wire from the trailer side 4-Way connector to the trailer frame to complete the installation. We have the a video detailing installation of the LED light...
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  • The Main Reason for Nearly All Trailer Wiring Problems
  • Rewiring a travel trailer like yours would be pretty challenging as you will need to most likely remove interior walls to access the wiring. Since it would be much easier to check the grounds first (as that is most likely the actual problem) I recommend you start there. Nearly all trailer wiring issues are ground related. Try finding a better ground for the light assemblies on your trailer to see if the issues you are having go away. Some assemblies ground through their mounting hardware....
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  • Troubleshooting Left Blinker Not Working on a Trailer
  • It really sounds like the ground is not making good enough contact on the left turn signal/tail light and because of that it is able to draw enough amperage to illuminate the blinker function of your bulb. There is a chance the converter box of your setup could be wrong, in order to test that you will need to test for voltage coming into the box and then for voltage coming out of the box with circuit tester like part # PTW2993 . If you find that there is voltage going into the box on...
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  • Wiring Trailer To Separate Turn Signal From Combined System
  • You can add a converter to the trailer wiring to separate the brake and turn signals. You will also need to add an amber turn lights to your trailer. You can use the tail light converter, part # 118158. This will separate the turn signal circuit from the brake light circuit. This should be installed on the trailer in a way that keeps it protected from the elements. You will need to use the wires from your trailer wiring harness and attach them in the following manner. Attach the right...
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  • Light Bulb Replacement in a Sealed Light?
  • It would not be possible to replace only the bulb in a light such as # ST70RB because it is sealed. You would need to replace the entire thing. There is also an LED version of this light, # STL22RB, which you may be interested in.
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  • Installing New Trailer Light with 2 Wires in Place of Trailer Light with 1 Wire
  • Your old light must be a model that grounds through the mounting hardware. The new light has a separate ground wire. The white wire is the ground and it will attach to a clean metal surface. The black wire is the power wire.
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  • Why Does a Marker or Clearance Light Only Have One Wire
  • The marker and clearance lights you have now ground with a single wire hence why you have two wires total, one for power and one for ground. If the marker or clearance light only has one wire then this wire is for power and the light grounds though the mounting hardware. When you determine which of the two wires you have is for power, you just simply need to cap the other one off. If the new light with only one wire is installed in a rubber grommet then you will need to run a ground wire...
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  • 30-91-010 Bargman Light Replacement Recommendation
  • The square style of light that you currently have has been discontinued and is no longer available. You would want to replace your current assemblies with the Bargman Surface Tail Light part # 30-92-002. The rounded corners would not need to be calked. They just would install in place of what you have and would work just fine. Since your current lights are acting funny you might check the condition of the grounds of the assemblies. The white wire will need to be connected to a clean...
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  • Troubleshooting Trailer Taillights that Dont Blink When Running Lights are On
  • What it sounds like is going on is that you have the wires from your trailer run backwards to the two illumination circuits of your trailer. This would explain why when the running lights are on the blinkers and stop lights aren't functioning. Since the harness of the lights has three wires you will need to make sure you are using all three of the wires. The running lights of your trailer should run to the wire on the lights that activates the lower intensity and the stop/turn circuit...
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  • Replacement Tail Lights for a 2017 Thor Quantum 31WS Class C Motorhome
  • If you want to swap out your current tail lights on your 2017 Thor Quantum 31WS with the Bargman Triple Trailer Tail Light # 30-84-509 then you can, but if the bolt holes don't match up you may need to drill new holes. Attached is a photo showing the dimensions of where the bolt holes line up. I looked up some pictures of your Class C motorhome and it looks like your tail lights have a design that closer matches the LED Triple Tail Light # 328-003-30LEM2. This measures 14" long x 6-7/8"...
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  • Replacement Taillight for Jayco Jay Series 1007
  • I looked up pictures of your 2007 Jayco Jay Series 1007 and it looks like it has the same style of taillight as the part # 30-92-003. The great thing is that most trailer taillights are all basically the same designs across a few manufacturers so if you can match the appearance of what you have to a light you see on our site it's going to be the correct match. This is the version that comes with a license plate mounting bracket. If that's not needed you'd instead want the part # 30-92-001.
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  • LED Taillight Options to Replace Bargman 92 Series Taillights
  • Based on the 30-92-XXX partial part number you provided, it sounds like you have Bargman 92 Series taillights. These taillights measure 8-9/16 inches long x 4-9/16 inches wide x 2-1/8 inch thick. I have some options for LED taillights for you, however there is not a direct LED replacement for the 92/94 Series lights. If you want to stay with Bargman lights for you trailer, you can use the Bargman LED Surface Mount, Double Tail Light, 84/85 Series # 47-84-610. This double taillight offers...
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  • What is the Difference Between Over 80 inch and Under 80 inch Trailer Tail Lights
  • A trailer that is over 80 inches wide is required by DOT regulations to have rear clearance lights. An over 80 inch taillight kit, like part # TLL16RK, will have the side clearance light built into it. An under 80 inch taillight does not have the clearance light built in and an additional red, rear side marker light would be required if you used an under 80 inch rated light on a trailer that is over 80 inches wide. Using an over 80 inch taillight on a trailer like yours that is under...
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  • Which Oval LED Trailer Tail Light is Brightest?
  • It is difficult to compare the brightness on the different LED oval tail lights. Neither Bargman nor Optronics share lumen ratings for their tail lights. So, when comparing the Bargman 48 Diode Tail Light # 47-06-404 with the Optronics 22 Diode # STL111RB, or the Optronics 10 Diode # STL72RB, you won't notice a huge difference with the naked eye. But, in most cases, the more diodes there are in an LED light, the brighter it will be. This is not always the case, but all LED tail lights...
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  • Upgrading Camper Lights to LED and Clearance Lights with Brake and Turn Signal Functions
  • Yes, you can upgrade to LED lights and have a double light set up in the rear with stop, tail, and turn light functions. But what I need to know is if the camper has the brake lights and turn signals on the same bulb or if it has separate amber turn signals. And if the camper does have combined brake and turn signals do you want to keep it that way or do you want to have separate turn signal and brake light circuits? We have several options for double tail lights, such as # 47-84-610,...
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  • Troubleshooting LED Lights Not Working On Trailer
  • The first thing I recommend doing is to check that the ground wire for the lights are securely attached to a clean metal surface on the trailer frame. A loose ground wire will keep the lights from working. If the ground attached to the trailer does not give you an adequate ground, you can run the wire up to the ground circuit on the trailer connector. Next, you want to make sure the wiring on the trailer is wired correctly and wired by function, not just by color. I recommend using...
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  • Wire Colors Explained for Installing the RV Tail Light - Stop, Tail, Turn 30-92-001
  • On the trailer light part # 30-92-001 the white wire is for the ground, the green for the running light circuit and then the black is for the stop/turn signal circuit which is brighter. I also attached an install video for this light for you to check out as well.
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  • Troubleshooting LED Trailer Light Installation
  • The first thing I would do is check that the white ground wire is attached solidly to a clean metal surface on the trailer frame. A bad ground will prevent a light from working, if the ground of the trailer does not prove to be adequate you could run it up to the ground circuit of the trailer connector. The next thing you will want to do is make sure that the # STL16RB is wired correctly by function and not just by wire color. Normally the colors of a 4-way will be the standard colors...
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  • How To Charge Trailer Battery On Dump Trailer Using The 7-Way Trailer Connector
  • You will want to use a circuit tester like part # 40376, and check the # 4 terminal on the back of the 7-way trailer connector on your trailer for power. This is the 12 volt power terminal so there should be power to that terminal. You will need to run a 10 gauge power wire like the, # 10-1-1, from the # 4 terminal (12 volt) on the 7-way trailer connector on the trailer to the positive terminal on the trailer battery. This will allow you to maintain a charge on your trailer battery,...
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  • How to Mount Trailer Clearance Lights that Ground Through the Mounting Studs
  • With a one wire light like the Optronics Mini Rectangular LED Clearance Light, item # MCL95AB, you can ground the light in one of two ways. If the light is mounted to a location that allows for the mounting bolt or screw to contact a good ground location such as the vehicle frame then you can mount the light in this location. Then, run the power wire to a 12 volt positive tail light circuit without further wiring. If the location the light is mounted to is not a good source of ground,...
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  • Troubleshooting Dim LED Trailer Lights after New Wiring and Light Assembly Installation
  • The problem is either the power or the ground side of the wiring of the LED assemblies. First thing to do is check that 12 volts are making it to the trailer connector. You can use a circuit tester like our part # 3808. Next, trace the wiring back to the light assembly testing as you go with the circuit tester to make sure the voltage is making it to the light assemblies. Next, you need to make sure the ground wire of the light assemblies are connected to a clean, metal surface. If you...
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  • Wesbar 271594 and 271595 LED Trailer Taillight Recommendation for Ranger Trailer
  • The Wesbar trailer taillights part # 271594 (right hand) and # 271595 (left hand) would be a great choice for your trailer that currently has Wesbar lights. These are pretty universal in the way they install so they fit on your Ranger trailer and work well. I attached a dimension picture for you to check out as well.
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  • Turn Signals on Trailer are Dim and Not Work with Running Lights On
  • There are a couple of possible reasons why the directional lights on your trailer are dim and do not work at all when the running lights are turned on. The most common cause for this type of issue is a weak ground. A weak ground connection will usually allow enough current through for some lights to pass, but not enough for all of them. Considering that the running lights will remain continuously on when activated, unlike the brake or turn signals, they will require more power and there...
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  • Replacement Lens for Optronics Tail Light S2T216AP2
  • I don't have any reference to the "S2T216AP2 " that you provided but based on my research it sounds like you might have the Optronics LED Combination Trailer Tail Lights part # TLL160RK. If that is the case then the correct replacement lenses are part # AL16RB for the front and part # AL17RB for the side. If you have a different light then please send me a photo.
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  • Replacement Trailer Clearance Light for a Haulmark Trailer
  • You will have to look at the original light to determine the manufacturer and model number. If it is listed on the light it will be on the light housing somewhere (not the lens). If it is not, then you have to go by the measurements of the light. This light measures 3/15/16 inches long, 1-1/4 inches tall, and 7/8 inches deep. It is an exact replacement for Peterson light M154A-R.
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  • How to Remove the Light Cover on the Optronics RV Interior Dome Light # RVIL21
  • To remove the cover on the Optronics RV Interior Dome Light # RVIL21 you just need to slide the cover away from the end with the switch. I have attached a short review video where this is done. Once removed simply use a 921 bulb, or the LED # 277-000102, as a replacement. If you are talking about an interior light on your 2013 Subaru Outback Wagon then I wouldn't know how to remove the cover unless it is the same product as the # RVIL21 that you initially referenced.
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  • Correct Wiring for Optronics LED Trailer Lights # STL22RB
  • To install the Optronics LED Trailer Lights, part # STL22RB, you will need to use the Straight 3-Wire Pigtail, part # A45PB. The Red wire of # A45PB will carry the turn signal function, the Black wire is for running lights, and White is ground. If you are referring to installing the lights on your vehicle, you would need to use a circuit tester, part # 40376 to test the functions of each wire. If installing on a trailer, I would recommend running new wiring from the lights to the...
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  • Recommended Replacement for Bargman 68 SAE-P2-A81 Red Clearance Light
  • There is not a direct replacement available for your Bargman 68 SAE-P2-A81 red clearance lights, however we do have a trailer light with comparable dimensions. I recommend looking at the Optronics Rectangular Trailer Clearance Side Marker Light - Red # MC48RB. The actual dimensions of the light are 3-29/32 inches long and 1-27/32 inches tall. It has the same 3-3/8 inch mounting hole measurement as the existing Bargman unit on your trailer. I have attached a short demonstration video...
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  • Trailer Lights Do Not Light Up But have Power on All Wires
  • The problem you are experiencing sounds like a ground issue and/or short circuit. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light but can show up any time. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The...
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  • Recommended Extremely Bright Trailer Reverse Light
  • I'll do my best to be just as helpful as Rebecca. I do have a few options for you depending on the exact size you'll need. I know you said you aren't worried about being compliant with the DOT but the best options we have both are. The Optronics GloLight LED Backup Light # BUL111CB is a 6-1/2 inch by 2-3/8 inch light that will fit into an opening of 6-7/8 by 2-1/2 inches. It's a clear lens with 22 diodes. All of the different sizes and shapes of GloLights we have get very good...
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  • Replacement 6-1/2-Inch Oval Trailer Tail Lights
  • Thank you for the trailer light lens coding. This is not an actual light part number; this usually appears on the light base. Just the same I think what you're looking for is a product like # STL78RB. This is a sealed 6-1/2-inch oval tail light that uses high efficiency LEDs instead of standard bulbs. You can see all oval tail lights by clicking on the linked page. Click on the filters for lens color, bulb type, etc to narrow down the range of lights shown.
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  • How to Wire A Replacement RV Tail Light on a Coleman Pop Up Camper with Red Tail Light Wire
  • It is likely that the red wire is a jumper wire from one side of the trailer to the other for the running lights. You can verify this by testing the wires using a circuit tester such as # 40376. Connect the trailer to the tow vehicle and have someone operate the light functions while you test the wires. For example, if you are replacing the lights with the RV Tail Light # 30-92-001, the white wire is for ground, the green wire is for turn and stop, and the remaining wire is for running lights.
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  • Replacement LED Tail Lights for a Karavan Trailer
  • For your Karavan trailer I recommend LED tail lights # STL57RB and # STL56RB. They are a little shorter at 6-1/16 inches but they do mount on studs spaced 2 inches apart on center. they are 3-5/8 inches tall and 2-1/4 inches deep overall. I have linked some video reviews of these lights for you.
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  • LED Trailer Light Recommendation for 1999 Ranger Trail Trailer
  • Previous customers of ours that have had a Ranger Trail trailer like your 1999 model had Wesbar wraparound taillights on them. The LED version of this light would be the part # 271594 for the right hand side and part # 271595 for the left hand side. I wasn't able to find any decent pictures of the clearance lights on your trailer online, but I attached a link to a page that has all of the LED clearance lights we offer for you to check out.
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  • Connecting Trailer Side Marker Lights to Trailer Wiring Harness
  • The marker lights would tie into the running light circuit, which is carried by the brown wire on the trailer wiring harness. I've linked you to a trailer wiring diagram, and also to our trailer wiring FAQ article.
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  • Left Side Trailer Lights Not Working With New LED Trailer Lights Installed
  • The first thing that I would recommend checking are the ground connections for the trailer side connector and the lights. Poor ground connections are the most common culprit of trailer wiring issues. The lights will have either a ground wire or they will ground through the mounting hardware. Each of the ground connections should be secured to a clean, bare metal surface on the trailer frame or to the negative terminal of a trailer battery if you have one. If the ground connections check...
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  • Power Getting to Trailer Tail Light with a Good Bulb but the Bulb Does Not Light
  • If power is getting all the way to the light and the bulb is good but will not come on that indicates to me that the circuit is not being completed. This would mean the ground is the problem. You can test this pretty easily by attaching the ground from the affected light directly to a negative battery terminal. The light should come on. The lights should be grounded independently and as close to where they are mounted. There should be no corrosion, paint or dirt on the ground location....
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  • How to Wire a Third Brake Light on Trailer
  • Since your trailer uses a combined wiring system where the stop and turn signals run on the same circuit, in order to add a third brake light like the Single Function LED Trailer Third Brake Light, # STL80RB, to your trailer you would need to use a 2-Wire to 3-Wire Converter, like part # 118158. This will convert the wiring to a separate system which would allow the third brake light to only come on when braking. To wire the converter you can start with the input side, white wire needs...
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  • All Trailer Lights Blink When One Turn Signal Is Activated
  • The most likely cause for the incorrect behavior of your trailer lights, where activating one turn signal causes all trailer lights to blink, is an insufficient ground (or a short to ground) on either the vehicle or the trailer. Since you re-wired your trailer you can check for a secure ground connection at the trailer connector. Make sure the white ground wire is firmly secured to a clean bare-metal surface that is free of paint, rust and grease. Next check that the ground wire for the...
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  • LED Lights for 2018 Ranger Boat Trailer
  • While there are certainly LED lights that will work for your 2018 Ranger VS1882 WT boat trailer, there are no specific replacements for any trailer the way there are for a passenger vehicle, for example, and there unfortunately isn't a way for us to know the exact lights that are on a trailer outside of something like previous confirmation from a customer, which I was unable to find for your '18 Ranger. It is fairly simple to figure out replacements that will work for you, however;...
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  • Availability of Wesbar Wraparound Light # 105 825 -26 Replacement
  • Can I see a picture of the assembly you are refering to? I can't find any info on it.
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  • Replacement Lights for Jet Trailer with Glo Bright 126R and 126Y Clearance Lights
  • We have the Peterson Red Flush Mount Clearance Light with Chrome Plating, 126R # 425000 to replace your red lights and the Peterson Amber Flush Mount Clearance Light with Chrome Plating, 126A # 424800 to replace your amber (yellow/orange) lights. If you want LED lights, we have similar styles, but not the exact replacements. I've attached a link to your options and you can narrow the results by size in the left hand column.
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