See what our Experts say about this Optronics Trailer Lights

• How to Connect the # STL42RB Tail Lights to a 1958 Trailer with 2 Wire Lighting System
  The 4 inch Round Sealed LED Stop, Turn or Tail Light, item # STL42RB, uses a 3 wire pig tail, item # A47PB or # A45PB, to connect to your existing trailer wiring. The plug on the pigtail plugs into the back of the tail light and is then hard wired to your trailer wiring. It sounds as if your original tail lights were grounded to the trailer frame through their mounting studs, so a third wire was not needed. When connecting the 3 wires from the 3 wire pig tail, you will ground the white...
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• Replacement Tail Light For Forest River Georgetown XL RV
  I'd be happy to assist you. It sounds like you need the Sealed, Flush Mount Tall Rectangle LED Trailer Stop, Turn and Tail Light, Grommet and Plug, 12 Diode # STL34RB but most of the pictures I see have round tail lights like the Sealed, 4" Round, LED Stop/Turn/Tail light, 21 Diode - Red # STL55RB. If this is not the correct part, then send me a photo with the measurements of the light and we will get you what you need. The numbers and letters that are actually printed on the light are...
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• Need Tail Lights And Wiring For 5x7 Utility Trailer
  Hello Greg, thanks for reaching out. Really any stop, turn, taillight could work for that purpose. The Optronics LED Trailer Tail Light # STL42RB will be a great option as long as your have a solid surface to mount to. The mounting holes are 4-1/4" apart on center. To wire them up you will need the Right Angle 3-Wire Pigtail for Optronics Trailer Lights # A47PB. Then to wire the trailer you will just need a 4-way harness like part # A35W42B. This is 35' long so you can cut it down to...
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• Replacement Taillights, Wiring and 7-Way Connector for Car Hauler
  To fit the round 4-1/2 inch holes on your trailer for the rear brake lights you could use the # STL42RB as this will fit in that hole. For a pigtail harness you would also need # A45PB. For the side clearance lights you would need to enlarge the holes to 3 inch in diameter, use the # A55GB as a grommet and then use # MCL59AB for the lights and # A46PB as a wiring harness. For a replacement 7-way with 8 feet of wire for running new wire everywhere you would want the part # H20046. You...
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• Replacement Option For Glo-Brite 9891-88 LED Trailer Tail Light
  We do have an option for you to replace your Glo-Brite 9891-88 LED trailer tail light. Based on my research this is a 4 inch round LED tail light that uses a 3-wire plug and fits in a 5-1/2 inch grommet. We have exactly that with the following light: - Optronics LED Trailer Tail Light # STL42RB This comes with the grommet, which has mounting holes separated on center by 4-1/4 inches, so the only other thing you will need is the 3-wire pigtail, and you can choose from a standard or right...
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• What Size Hole Needs to Be Cut To Install the Sealed 4 inch Diameter Optronics Light STL42RB
  To install the Sealed, 4" Round LED Trailer Stop, Turn and Tail Light, Flange Mount Light # STL42RB that you referenced you will need to drill a 4-1/2 inch hole for the light to fit and the mounting holes will be 4-1/4 inches apart on center. For a pig tail harness you will want the part # A45PB.
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• Do Trailer Lights Sometimes Ground Through Mounting Hardware
  There are quite a few trailer light assemblies that use the mounting bracket as the ground. This works because the mounting brackets typically get attached to metal surfaces that touch the trailer frame which is where the ground strap of the trailer wiring harness connects. You can run a jumper wire from the mounting hardware to the main ground wire of the trailer if you wanted to as well.
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• Replacement Tail Light for 2009 Ranger Boat Trailer
  Sometimes it is possible to replace a broken trailer light with one that uses a different type of installation but since we offer a very wide range of lights you may very well be able to find an exact OEM-style replacement. It sounds like you have a light like # STL42RB which has a 3-hole mounting flange. I linked our main page for trailer tail lights of all shapes and sizes. On the page you can simply click on the filters for light shape, light type (LED or standard bulb), lens color,...
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• Converter Recommendation to Install Combined Taillights on a Flatbed Truck that had Separate Bulbs
  It sounds like you need to convert the separate wiring of your 1991 Nissan truck to a combined setup to work with the Round LED Taillight # STL42RB. For this you will need to get a Roadmaster Brite-Lite Wiring Converter # RM-732. You will run the wires from your vehicle to the right side of the # RM-732 by function, and then from the left side of the box you will run the corresponding left or right turn signal wire to the red wire of the # STL42RB. The tail light circuit will bypass this...
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• Replacement Lights for 1989 Interstate Box Trailer
  The diameter you are looking for is 4-1/2" on the # STL42RB. This would be the widest part that would fit into the hole on your trailer. We do not have an LED option without the plug but we do have the Peterson # PM425-3. This has the same mounting hole dimensions and is also 4-1/2" at the widest point on the back. If you decide to stick with the Optronics light you will need the # A47PB or # A45PB.
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• Replacement Round LED Stop/Tail/Turn Light for 4-1/2-inch Opening
  It sounds like you are looking for a recessed-mount light such as Optronics Round LED Trailer Stop, Turn and Tail Light # STL42RB. This light has a 3-hole mounting flange that measures 5-1/2-inches overall diameter. The mounting holes are spaced on 4-1/4-inch centers. Other options in round red LED-type stop/turn/tail lights are shown on the link provided.
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• How to Ground a Trailer LED Light that Only has 1 Wire
  If a light has just 1 wire that means that it grounds through its mounting hardware. Be sure to use steel hardware and mount the light to a clean and corrosion free bare metal surface. If there isn't a steel surface where you want to mount the light you can place a ring terminal with attached wire between the hardware and mounting surface and attach the other end of the wire to a steel surface.
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• Replacement LED Tail Light For Pacific Trailer
  We have LED trailer lights available. If you have the dimensions of the light you want to replace that would help in finding the right replacement for your Pacific trailer. From my research I found that some of the Pacific trailers use part # STL42RB. This is a 4-inch round flange mount light that has 10 LEDs. It is a three function stop/turn/tail light. If you need a flush-mount light, we also have part # STL43RB. this is also a 3-function 10-LED light. If you are looking for an oval...
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• Replacement Pigtails for Optronics LED Trailer Tail Light
  Yes, there are a couple of replacement pigtails for the Optronics LED Trailer Tail Light item # STL42RB. One is a right angle plug the other is a standard. I have listed them both below. Right Angle 3-Wire Pigtail for Optronics Trailer Lights item # A47PB 3-Wire Pigtail for Optronics Trailer Lights item # A45PB
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• Can Utility Lights in Trailer Run Off Running Light Circuit Through a Switch on an Aluminum Trailer
  Yes, you can run the switch power wire to a clearance light but the trailer would have to be connected to the vehicle with the running lights on for the interior lights to have power. Aluminum does not offer the best ground so if the lights do not work you may have to run a jumper ground wire to a steel component or the main trailer connector ground. I would try it first to see if there is any problem with grounding to the aluminum surface. A fuse is not needed though you could add one...
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• Will Each LED Taillight Need to Be Grounded Separately on Trailer
  When it comes to wiring an LED taillight like the Sealed 4" Round LED Trailer Stop, Turn and Tail Light # STL42RB with Pigtail Harness, # A45PB, the red wire is for stop and turn, the black for running lights, and the white wire will need to be attached to a clean and corrosion free bare metal surface on the trailer. As for a clearance light having two wires like the Rectangular LED Trailer Clearance and Side Marker Light, # MCL32AB, you will ground the white wire and connect the black...
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• Troubleshooting Running Lights Circuit on a Travel Trailer Tail Light Harness
  Since you have tested the 4-Way connector on your vehicle and it is working properly, it leads me to believe that the wiring of the lights is incorrect. You will want to make sure that the fuse for the running lights on the vehicle is not blown. It sounds to me like the lights you have only have two wires coming out of the back for wiring to the trailer connectors wiring. If this is the case then the red wire will connect to the yellow (left) and green (right) wires on the trailer lights....
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• What is the Power Draw of Optronics LED 4 Inch Round Trailer Tail Light # STL42RB
  Because tail light # STL42RB has more than one function it has more than one amperage draw rating. Brake lights and turn signals draw more power so that will be the higher draw at 0.413 amps. Running lights use less power and would be the 0.26 amps. If you have the running lights on and then step on the brake, the brake light overrides the tail light. If you have the brakes on (with or without the running lights on) the turn signal will override the brake light on that side. So the most...
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• Pigtail for Optronics #42 Series Trailer Lights
  The Optronics LED Trailer Tail Light # STL42RB comes with the light assembly only, but we do have the following pigtail styles to choose from: - Right Angle 3-Wire Pigtail # A47PB - Straight 3-Wire Pigtail # A45PB
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• Replacement LED Trailer Light to Reduce Power Draw
  The Optronics LED Trailer Light # STL42RB is not what I could call an exact replacement for the # ST40RB but for all purposes it will be what you're looking for. The # STL42RB is 1/8 inches larger in diameter and 3/8 inches deeper so at the most you may need to do a little filing to the opening for the light in your trailer to install it. The mounting flange is metal. There is also a Stainless Steel Trim Ring # A5TRSSB available. It does not include a gasket, however If you would prefer...
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• What Size Hole Should be Drilled to Install a 4 inch Optronics Clearance Light
  You would want to drill a 4-1/2 inch hole to install the 4-inch Optronics Trailer Light # STL45RB. You will also need a Straight 3-Wire Pigtail # A45PB to wire in the # STL45RB.
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• Replacement Tail Light Assembly For 2005 Airstream Trailer
  We offer several lights and may have just what you are looking for that will fit your 2005 Airstream. Thank you for the photo of your lights. You will want to take a measurement to be sure you get a light that will match the housing you are installing it in. if you remove a light you may be able to get the part number of the light assembly. If you cannot find the part number you can measure the opening and mounting holes to make sure we get a light that will work. The light assembly...
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• Round LED Trailer Tail Lights to Replace Peterson Incandescent Lights
  Three inches is small for a tail light. There aren't even any incandescent stop, tail, and turn lights as small as 3 inches. It looks like to get what you want you will need to got to a 4 inch light. If you like the Peterson lights and need a flush mount that mounts in a grommet you could use # 435800. It does use the plug-in style connector but you would still hardwire all of the wires, including the grounds, to the trailer. This light includes the grommet and pigtail. I have included...
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• Availability of 3-Prong Pigtail Plugs with Load Resistors
  The Optronics Round LED Trailer Stop, Turn and Tail Light # STL42RB does use a 3-prong plug for electrical connection. We offer right-angle 10-inch pigtail plug # A47PB and straight pigtail plug # A45PB. Neither of these includes a load resistor, which can be required on some wiring systems to mimic the higher electrical resistance of standard incandescent lights. Some turn signals will hyper-flash when used with LED lights because the wiring does not "see" the load from the super-high-efficiency...
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