Price: $13.90

Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode

Item # STL78RB

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Retail:$17.95

Our Price: $13.90

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optronics trailer lights tail 6-1/2l x 2w inch sealed 6-1/2 oval led stop turn and light flange mount 10 super diode
optronics trailer lights stop/turn/tail submersible
optronics trailer lights stop/turn/tail submersible
optronics trailer lights stop/turn/tail submersible stl78rb
optronics trailer lights tail stop/turn/tail sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode
optronics trailer lights tail 6-1/2l x 2w inch
optronics trailer lights tail submersible sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode
optronics trailer lights stop/turn/tail 6-1/2l x 2w inch stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights stop/turn/tail submersible stl78rb
optronics trailer lights submersible 6-1/2l x 2w inch stl78rb

In Use/Installed

trailer lights optronics submersible 6-1/2l x 2w inch stl78rb
trailer lights optronics stop/turn/tail 6-1/2l x 2w inch stl78rb
trailer lights optronics tail 6-1/2l x 2w inch sealed 6-1/2 oval led stop turn and light flange mount 10 super diode
trailer lights optronics tail stop/turn/tail in use

Customer Photos

optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode
optronics trailer lights stop/turn/tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode
optronics trailer lights stop/turn/tail submersible stl78rb
optronics trailer lights tail submersible stl78rb
optronics trailer lights tail submersible sealed 6-1/2 inch oval led stop turn and light flange mount 10 super diode

  • Tail Lights
  • Oval
  • LED Light
  • Red
  • Surface Mount
  • 6-1/2L x 2W Inch
  • Submersible Lights
  • Optronics
  • Stop/Turn/Tail
7-9/16" L x 3-5/16" W x 3/4" D; FMVSS 108 approved; sealed, waterproof; corrosion resistant; flange mount on 7" and 2-3/4" centers; 3-wire; 10 super diode LEDs Lowest Prices for the best trailer lights from Optronics. Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode part number STL78RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.



Optronics Trailer Lights - STL78RB

7-9/16" L x 3-5/16" W x 3/4" D; FMVSS 108 approved; sealed, waterproof; corrosion resistant; flange mount on 7" and 2-3/4" centers; 3-wire; 10 super diode LEDs


Features:

  • Red, oblong light functions as stop, turn, and tail light
  • Sealed, waterproof housing and lens unit
  • Corrosion resistant
  • 10 Super LEDs (Light Emitting Diode)
  • Flange mounts with four mounting holes in the center of each side
    • centers at 7" lengthwise and 2-3/4" widthwise
  • Wiring design contains lead wires and a ground wire to mount to all surfaces
  • Wire functions:
    • Red: Turn signal and brake
    • Black: Tail light
    • White: Ground
  • Dimensions: 7-9/16" L x 3-5/16" W x 3/4" D
  • Light draws 0.243/.046 amps at 12.8 volts


This is a sealed, oval LED combination stop, turn, and tail light. The LEDs in this light are super diodes for exceptional brightness and performance. This red light measures 7-9/16" long x 3-5/16" wide x 3/4" deep. This light meets FMVSS 108 requirements in any 360 degree position. Lens and housing are one unit that is sonically sealed and waterproof, providing protection to the 10 super light-emitting diodes. The molded plastic housing and durable lens provide all-weather protection against corrosion. The light draws 0.243/.046 amps at 12.8 volts. This light flange mounts through the four mounting holes in the center of each side, centered on 7" lengthwise and 2-3/4" widthwise. The three-wire design includes the lead wires for power and a ground wire for mounting to any surface.
Federal Motor Vehicles Safety Standards 108


Manufacturer Specifications

Sealed, flange mount, red LED stop, turn and tail light. 10 super diodes for bright, dependable performance. Meets DOT FMVSS 108 requirements in any 360 degree position. Surface mount unit does not require panel cutout. Features sonically sealed, waterproof lens and housing in a single unit. All-weather, molded plastic housing and durable lens protect against corrosion. Separate ground wire.


dimensions of LED light


STL-78RB Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode 0.243V/0.046A







Economy - This item

Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode


Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode
Optronics Trailer Lights

188 reviews

Code: STL78RB

In Stock

Retail:$17.95

Our Price: $13.90


  • Trailer Lights
  • Tail Lights
  • Stop/Turn/Tail
  • Oval
  • Surface Mount
  • Submersible Lights
  • LED Light
  • 6-1/2L x 2W Inch
  • Red
  • Optronics


7-9/16" L x 3-5/16" W x 3/4" D; FMVSS 108 approved; sealed, waterproof; corrosion resistant; flange mount on 7" and 2-3/4" centers; 3-wire; 10 super diode LEDs

more information →
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  • Recessed Mount
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6-1/2" x 2-1/4" Oval. Waterproof trailer light serves 3 functions: brake, tail, and turn. Recessed mount with grommet (sold separately). Accepts industry-standard 3-prong plug. 48 LEDs. Red lens.

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Video of Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Optronics Flange Mount Sealed 6-1/2" Oval LED Trailer Light Review

Today were looking at the Optronics Sealed, 6-1/2 inches Oval LED Trailer Stop, Turn and Tail Light. This light functions as a stop, turn, and tail light. It has a sealed waterproof housing and lens unit. It has 10 Super LEDs or light emitting diodes. The red wire functions as a turn or brake light, the black is our tail light, and the white is our ground.

This light draws .243 amps at 12.8 volts. Lets go ahead and hook up a power supply so we can see what it looks like lit up. Well hook up the red wire which is our turn signal or stop light, the black wire is our running light, and the white wire is our ground. Theres our blinker and brake light function. Now well go ahead and turn off the overhead light so you can see what it looks like at night. And there you have it for the Optronics Sealed, 6-1/2 inches Oval LED Trailer Stop, Turn and Tail Light, part number STL78RB.


Customer Reviews

Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode - STL78RB

Average Customer Rating:  4.8 out of 5 stars   (188 Customer Reviews)

7-9/16" L x 3-5/16" W x 3/4" D; FMVSS 108 approved; sealed, waterproof; corrosion resistant; flange mount on 7" and 2-3/4" centers; 3-wire; 10 super diode LEDs

- STL78RB

by: Wayne Miller08/09/2013


Good online documentation, including video, but no documentation provided with products. Wire functions are moulded into the housing. Mounting flange is not very thick but should be adequate if mounted on a flat area that is larger than the flange. The mounting surface should be drilled to pass the wires, perhaps not clear from the drawing. The three wire protrude in line from the exact center of the assembly, covering a total distance along the length of the assemble of just over 1/2 inch. 94231


Comments

So great to have a sealed LED assembly so I dont have to worry about water seeping in and blowing incandescent bulbs. They are very bright. I ordered extra ones to mount on a light bar that I mount on the boat for better visibility.

Wayne M - 02/07/2015

9358

- STL78RB

by: Steve F07/10/2014


I replaced the old corroded incandescents with these on my coleman popup camper a week ago. Because theres no access from the inside of the camper to bolt them on i simply riveted them on instead. As these lights are sealed i don`t expect to see anymore high tide inside the lenses. They are brighter than the old bulbs but you have to be behind the camper to see them, not much light from the side if that matters. Will update if anything changes. 140554


Comments

Hi Steve.I have a 91 Coleman Columbia PU with the standard rectangular rear lights 8.5 x 4.75 that are recessed a bit into the camper shell. Is this similar to your PU? Do you think these would work for me?Thanks,Bill

-- comment by: Bill G - 10/27/2014

7464
Comments

Working great and looking new after a year!

Steve F - 07/10/2015

13255

- STL78RB

by: Dave D05/30/2017


I bought one of theses lights last year to replace one that had some of the LED's going out. Same manufacturer and same part number. The new light uses a different type of LED (square LED). The old style used an LED that looks more like a small bulb. I have 4 of these on the back of my 5th wheel trailer. The other three started going bad so I just replaced them as well. I have other LED lights inside the trailer that use the same type of LED as the new tail lights. I've had those lights for 6 years with no problems. . I suspect these new lights will last much longer with the new type of LED. 386594



- STL78RB

by: Don M.09/23/2012


Now that I'm finishing up on my Teardrop Trailer I've got these lights installed, along with a LED tag holder, and LED marker lights. I had also bought the fenders from etrailer they look great, and I get a lot of comments how good all these parts look. Oh and the prices are better then any place I could find.......Thanks etrailer 55571



- STL78RB

by: BP06/26/2013


WARNING- This is for ONE taillight, if you need two you have to order two of these. Maybe it was my mistake, and although they do use the singular word "taillight", I think they could be a bit more descriptive and specify that this is for one. Most websites list exactly what you will receive and it is the sellers responsibility. They have such a nice long description of the light yet they could put in a note saying, "this is for one light, order two if you need both sides." This was the first time I have ever bought trailer accessories so I thought this was for a pair (like it is on many other websites). But the light itself is great, nice and bright. Does not come with any hardware so make sure to have a drill bit and screws ready. 86231



- STL78RB

by: Steve H09/15/2016


E trailer provides small home town store customer service in a on line shopping experiance. What sold me was their customer service and the fact I can call with questions and make my order over the phone. We can not say enough positive things about the reps who helped me. I called and added to my order one day later and they made it all happen. The lights are a super product. Nice profile, easy to install, submersible, great price, great selection of different features and styles, will work on any surface as I always run a separate ground WIRE. one can add a chrome trim ring as well. I shopped around to different marine stores , marine catalogs and local stores, none had the selection. 295210



- STL78RB

by: RAM12/12/2017


Worked great as a replacement for OEM that was no longer available for RV. I also replaced the back side marker lights so the front and back matched. Pat C did a great job in completing my order with substitution for out of stock resistor. 459479



- STL78RB

by: Steve M.06/11/2012


Everything arrived packed in box very nice. Your service was quick. I really appreciated that you took the time to keep me updated on the shipment. It is really nice that you have the section with wiring diagrams. It might seem like a small thing but it sped things up for me as I did rely on it a few times. Your prices and products were great. I would say you have a lot of pride in your company. The next time I need trailer parts I will definetly order from you. Thanks again, Steve M. 43771



- STL78RB

by: Tim S.12/19/2014


etrailer was recommended to me by a friend who had previously dealt with them, so word of mouth was an important part of my contacting them for a new taillight for my Forest River Wildcat Sterling 5th wheel. The light I was directed to by the helpful and knowledgeable phone staff at etrailer was a perfect match for what I needed. Prices were very reasonable. Installation was relatively simple and the size and mounting holes matched my trailer perfectly. The etrailer staff followed up after the sale to make sure I was pleased. And, indeed, I was. I would recommend this website and its products. Now it's my word of mouth! 166314



- STL78RB

by: Michael05/27/2014


perfect and bright 132741


Comments

All are working, just as bright now as when new, do a GREAT job protecting the backside of camper

Michael - 05/28/2015

12155

- STL78RB

by: Joe V.02/10/2012


Nice products, good prices. Wsa shipped right out, but took forever it seemed to get here. Very well packaged. I am building a 1/2 scale teardrop trailer to pull behind my motorcycle. Just getting started. 31431



- STL78RB

by: Smokymb07/04/2017


Erin was helpful in helping me select which of the many available tail lights I needed. Arrived quickly and worked well when installed. Only issue in installation was the odd fasteners used on my trailer (2011 Homesteader). It uses a "double square" bit (not a Torx, not a Phillips) that was very difficult to find. Ended up using a #2 square bit that worked ok. Finally found a "double square" bit on another website .. wasn't in any of my local stores, but they were able to order one. etrailer might stock some of these odd bits, can't believe I'm the only guy with odd fasteners. 401605



- STL78RB

by: D.C.09/23/2017


Awesome lights! Bright. Easy to mount. Big. Well made. I would consider the price a steal based on the quality of the light. Bright! They really do appeared to be sealed and look like they could last a very long time. Through my fault I broke one all to pieces while on vacation. Well, the pieces that I could find were all broken anyway. Walked into a nationwide auto parts chain that is 4 letters and bought another one to replace it. It was the exact same light! I was surprised and glad. Was not looking to have a mismatched set. Great light. Bright! 435701



- STL78RB

by: Kenton04/10/2017


This product looks just right, small slim design, just what I was looking for. The LED lights are incredibly bright when the brake and or turn signal is on, no problem seeing this light during day light hours at all. With four pre drilled holes the light is held very securely to the end product you purchased for. All plastic so no rusting in wet weather. All in all I am very pleased with these lights and glad I chose from this vendor as they were shipped fast to my address. If you are looking for a slim LED light I recommend this light. Very pleased with them. 365344



- STL78RB

by: Ellen10/28/2016


I just got the product so I do not know how it WORKS. But it is on my trailer and it fits well. It looks great. And I have full anticipation that it will be wonderful. I will say this, your service and delivery are very good. I have received all products on time or even a bit early. And customerservice has been very responsive. 311636



- STL78RB

by: BH01/29/2017


Wired them in and they light up, blink, and do everything else they're supposed to do. Let me also mention that they are BRIGHT at night. Loading the boat onto the trailer at dusk/after dark they're almost blinding when the pickup driver steps on the brakes. Lol 336629



- STL78RB

by: Lee in NM07/31/2017


This is a general review for etrailer. Over the past couple of years I have been ordering parts of various kinds from etrailer. I have been more than satisfied every time. Their products are good, their service is fast, and there is so much helpful information on the website that it takes the guess work out of ordering, and installing products after you receive them. Etrailer is doing a great job as an on-line service. Keep up the great work. 414716



- STL78RB

by: Scott S07/27/2015


I live on a farm and we have numerous trailers (and we do all of our own repairs). About a year ago I started purchasing my trailer related parts from etrailer.com and have been very pleased with both their products and service. This flange mounted LED light is another great example. Ordered Monday online, shipped same day and arrived two days later for only a few dollars in shipping. Installed last night and it looks and works great! 214633



- STL78RB

by: Tim Mahlbacher02/24/2017


I purchased a replacement light from ETrailer online. The ability to find what I needed was very easy and the displaced product pictures were clear and showed me an exact match. The pricing and check out process was smooth and confident. I had no reservations ordering from ETrailer. The Trailer light came quickly and I installed it an wallah !!! A perfect 123. I couldn't ask for a better online experience!!! Thanks ETrailer 345213



- STL78RB

by: Paul B12/16/2011


Lights received on time in perfect condition. I used them on the back of my CRV as toad lighting. They look great when on and aren't noticeable when off. 28203



- STL78RB

by: Troy G.01/26/2017


This is the exact replacement for my boat trailer and has all the functions required to operate safely. I was able to remove and replace the light assembly in place with ease. The wire harness was already at the perfect length for retermination to existing trailer wiring. Great product, and price! Thanks, happy boater back on the water! ?? 335740



- STL78RB

by: Greg R.06/22/2017


I'm fabricating a very small trailer and needed a tail light with a very low profile. This particular light fit the bill perfectly. Unlike other "flush mount" lights I've seen, this one has no external protruding parts. The back is flat and all I need to do is drill a hole for the wires and screw into place. Just what I needed. 397768



- STL78RB

by: Momoko Harper07/03/2013


These lights matched the lights on my trailer perfectly. So simple to install. Wiring was not a problem as each wire is labeled on the back side of the light and of course the wonderful video makes things so easy. I put these on so I now have double light units on each side of my trailer. Highly recommend these for any trailer. 87258



- STL78RB

by: greg w.10/01/2017


They are very bright and work so much better than the other lights I had on the trailer. They also take up a lot less space on the bumper and won't get hit as often as the other lights did since they are not sticking up in they way, so this is a good thing as I won't have to repair the lights all the time. 438351



- STL78RB

by: George S.10/06/2014


My experience with two orders recently purchased from etrailer.com was OUTSTANDING!!! Because: 1. Product as represented 2. Price excellent 3. Shipping cost excellent 4. Service superb I wholeheartedly recommend etrailer.com - it is one of the very best online retailers I have ever done business with. 154757



- STL78RB

by: EdO09/16/2016


Easy to install, exact replacement part for my Skeeter EZ Load trailer. Always pleased with Etrailer.com. 295354



- STL78RB

by: Jim O02/23/2017


Just what I was looking for to use on my little trailer. Nice and bright, makes it look more modern. 344747



- STL78RB

by: Ray06/11/2017


Tailight is nice and ready for installation, however I did not know it was made of plastic. Also this product could be designed to have two mounting screws in the back for a optional mount. Please make this product all metal. Trailers go thru all kinds of abuse and use. Metal would be prefered. 391917



- STL78RB

by: John S.07/09/2013


Clean, simple, and exactly what i need them for. Using them as axillary lights for a hitch mounted bike rack. Wired them up to plug into my trailer light pigtail and put some velcro on the rack and the back of the lights. Stick on no problem and easy to remove. Light is sealed and well built. 88476



- STL78RB

by: Gary Navarre09/11/2016


I bought a pair of fenders from etrailer and a pair of taillights. I got excellent communication, quick delivery and it was free and a quality product. I'm a extremely satisfied customer and look forward to dealing with retailer again in the near future. Thank you etrailer. 294095



- STL78RB

by: Myke W.01/09/2017


I had to replace tail light on boat trailer. Found product on website easily , ordered and received in a timely manner. Matches perfectly, what I liked is that website gave you actual measurements so you could know with confidence you had right fitting product! 331080



- STL78RB

by: chuck02/02/2011


Ordered all new lights, grommets, wires, etc for a boat trailer on Sunday, received all the parts I ordered in one package on wednesday using standard shipping. Everything arrive ok and looks good. Haven't installed yet, but the service was great. 6531



- STL78RB

by: wpwedlake03/01/2011


The quality of the merchandise is excellent, both in appearance and from an operational perspective. I especially appreciate the responsiveness of etrailer order processing. Overall, purchasing from etrailer has been a very positive experience. 8149



- STL78RB

by: Wil R.04/14/2015


Thank you for your prompt service the product is perfect for the job I needed. Period. Space backspac thank you for your prompt service the product is perfect for the job I needed. Period. We will definitely call or order from you again. 185103



- STL78RB

by: dean06/30/2011


I replaced a oval led light and identification light bar on my rnr trailer. I received the parts fast and the install was fast and easy. Parts fit properly for my trailer. Will order from etrailer again. Thanks for the fast ship. 18304



- STL78RB

by: John12/02/2017


Just received and installed on lightweight 'tag along' trailer. Low current LED lights were essential in this application since tow vehicle is a bike engine Lotus 7 replica relying on the bike stator to power car and trailer lights. 456718



- STL78RB

by: brian Mc01/06/2017


there was a problem with the delivery of the lights. we were aware and going to call etrailer, but they contacted us first to let us know. the details were corrected and the item was shipped properly and arrived in a timely fashion. 330285



- STL78RB

by: Renee D.11/26/2016


I really appreciated the way the product description was set up. Based on measurements provided I was able to find exactly the light I needed for my Horse trailer. Would definitely do business with this company again...thank you! 319733



- STL78RB

by: M W B05/02/2015


good light good price 189468



- STL78RB

by: Dave Haney08/14/2013


product shipped same day as i placed the order, it arrived in perfect condition and was a exact fit. The special shipping left plenty to be desired as it sat in the post office from fri till tues am when it was delivered 94939



- STL78RB

by: Gary P.06/29/2015


These lights were a perfect fit on my cargo trailer and are great quality and super bright! I love that E-Trailer does the research for you with product videos tons of photos, measurements etc. Keep up the great work!! 208230



- STL78RB

by: John T05/31/2017


Great light for the money. I have them on my motorcycle trailer but one got hit broke the lens and bent the fender. The light still worked fine. I liked that the LED's were red, and lit up red even without the lens. 387041



- STL78RB

by: Phil P04/28/2017


My trailer light arrived when I expected it and good packed in packaging to elliminate breakage. The quality of the Etrailer light products are very good quality and very good prices. Great people to work with. 373452



- STL78RB

by: Frankey W.11/18/2014


The lights were exact replacement & the service was excellent. The ladies at etrailer took very good care of me & the follw up was excellent as well. Would not hesitate to do business with them again. Thanks 161561



- STL78RB

by: Leo R.12/11/2017


Product was received with no issues what so ever. Like that etrailer uses PayPal! Product works as it should and meet my expectations! I will def. be using etrailer for ALL my necessary trailer needs! 459132



- STL78RB

by: Bobalong04/22/2014


The lights are just the thing for flush mounted requirements. Minimum amount of time required to install. As I've become accustomed to, E Trailer had them to me in just a couple days. First rate outfit . 126345



- STL78RB

by: DavidD09/30/2011


These lights are what i have come to expect from etrailer. This is why I order all my traier parts from them. The lights are very bright,, good value for the money, easy installation. GREAT SERVICE TOO! 24892



- STL78RB

by: Greg F03/30/2017


Lights work great. I wish the outside flange was a little larger. The light I was replacing was longer than the new light and had to made some alterations to make it work. End result was good. 360586



- STL78RB

by: T06/11/2012


All I can say is that E-Trailer.com will get all my future business, the staff is very nice and helpful, the prices are great and I received everything in 2 days. All items were as described. 43694



- STL78RB

by: Amy C10/31/2017


Although the lights haven't been installed yet, the purchase was simple, the price was good and delivery was quick. The product is exactly as pictured and described. Good company. 447844


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  • Thanks for the information regarding your boat trailer, I was able to look up the tire size of your trailer in order to determine an appropriate replacement fender. I found that the trailer tire specified for your trailer was listed as a ST185/80R13. Therefore the trailer wheel is a 13 inch wheel with an approximate overall diameter of 24.4 inches. If your trailer tire is not this size please feel free to reply with an updated tire size and I can make additional recommendations for you....
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  • It sounds like the LEDs that you previously had installed on your trailer were single function LED lights, and that is why if they saw any power they were lit regardless if different blinker, tail light functions were being applied at the same time. These Optronics Trailer Lights, part # STL78RB, that you referenced are designed for all of the different stop, turn, and tail light functions and should work very well for you.
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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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  • Recommendations for 6-Inch Oval Tail, Turn and Brake Tail Lights for a Headache Rack
  • I recommend Optronics clear LED back up trailer light # BUL12CFB as it's a certified back up light function. For stop, turn and tail lights use # STL78RB which is also 6-1/2 inch by 2-1/4 inch (lens measurements). For # STL78RB the wiring is: red is turn signal and brake, black is the tail light and white is ground wire. Both have sealed, waterproof housings and lens units. Both options will keep the trailer lights size identical including sealed, waterproof, corrosion resistant...
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  • Are Load Resistors Required When Installing LED Lights on a Trailer
  • You will not need to add any diodes or other modules to prevent hyperflashing or any other bizarre taillight behavior when you install this Optronics Tail Light # STL78RB on your trailer. If you were installing LED tail lights on a vehicle and replacing the lights on the turn signal circuit then you would need a load resistor so that the blinkers would function correctly.
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  • Recommendation for Flashing or Strobe Tail Lights for Use on a Tractor
  • We do have some LED lights that strobe but none in red that are shaped like an oval. For a similar set of lights that do flash with power applied to them, take a look at # CPL65A-STR. These are amber lights. For red flashing lights, we have # CPL4R-STR. These are 4 inch diameter round lights. Any of the strobing lights we do carry will only act flash and will not have any other functions.
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  • Replacement Taillights for CM Trailers 2-Horse Bumper Pull Trailer
  • Thank you for the DOT number from your horse trailer's brake light lens. This is not the light's actual part number; that is usually found on the light base. If you can find that reference you can search our site using that number or use the filters on the linked page to select a new light based on dimensions, shape, etc. I checked photos of CM Trailers' 2-horse bumper pull Dakota series trailers and they currently use LED type surface-mount oval lights like # STL78RB. This light's mounting...
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  • Picture Request for the Snap-On Reflector Ring Installed on a Optronics 6-1/2 inch Oval Light
  • I went out in to our warehouse and pulled a Optronics Trailer Light # STL78RB and a Snap-on Reflector Ring for STL78RB Series LED Lights # A78RXB to show you what they look like together. I attached a picture and a video I shot also.
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  • Trailer Tail Light Turn Signal Does Not Work but Brake Light Does
  • The turn signal and brake lights are on the same circuit. If one is not working then it is likely because there is a bad or weak ground connection that will need to be addressed. Make sure that the vehicle and trailer side connectors are clean and free of corrosion inside and out. Next make sure the main trailer connector ground and the grounds for all of the lights are attached to clean and corrosion free bare metal surfaces. If the trailer has an aluminum frame, tilt bed, or folding...
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  • Availability of 2 Inch Round LED Tail Lights for Trailer
  • The closest match we have to the 2 inch stop/turn/tail lights you referenced are 4 inch round LED tail lights with grommet mount, # STL42RB. This is a 4 inch round clear back up light that has an overall diameter of 5-3/4 inches and a depth of 1-5/8 inches. This light will require a standard 3 prong plug, # A45PB. At this time we do not have any 2 inch stop/turn/tail lights.
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  • Recommended LED Tail Lights for an RXR 170 SXS ATV
  • The item you selected, Optronics Trailer Light, part # STL22RB, is a flush mount light so it would sit flush with the surface you mount it to. You would need to use Rubber Grommet, part # a70gb, which measures 7-5/8 inches by 3-3/8 inches. Part # STL22RB should be a good option for a replacement tail light on your sons RXR 170 SXS ATV. You will need to use Straight 3-Wire Pigtail, part # A45PB, to wire the light. If you are just wanting the tail light function, you will need to connect...
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  • Can I Use Optronics Trailer Light # STL22RB On My Coleman Camper
  • For the exact size replacement light for your camper trailer you will need to measure your lights. The Optronics Trailer Light # STL22RB, measures 6-1/2 inches long and is 2-5/16 inches wide. If your light is a different size or you do not have the right mounting hole, you can use Optronics Trailer Light, part # STL78RB, which is a flange mount light which does not require a mounting hole. To wire in the lights, you will need 3-Wire Pigtail, part # A45PB. The grommet that you will need...
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  • Best Method for Attaching Tail Lights to Aftermarket Flat Bed on 2008 Nissan Titan
  • I do not have a source for a plug that would mate with the factory harness for your OEM tail lights. Your best bet will be to use a circuit tester like part # 3808 and test the wires in the rear harness to determine their function. The black wire on the replacement tail light will attach to the running light circuit, and the red wire attaches to the turn signal/brake light circuit. Using quick splices like part # 804C would be the simplest method of making your connections. If you go this...
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  • Troubleshooting Malfunctioning Trailer Lamps on 2015 Lakota Horse trailer
  • It sounds as if you might have two issues going on. When the turn signals are activated, all the diodes in the LED lamp should blink. If they don't (assuming that particular lamp was wired correctly), the lamp is faulty and should be replaced. For the issue with the turn signals not functioning when the running lights are switched on, that sounds like a ground issue. When you turn on the vehicle headlights, the trailer wiring system is drawing maximum amperage. If there's a ground problem,...
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  • Oval LED Trailer Light Option That will Also Provide a Reflector
  • I may have a solution for you, however, the Optronics Sealed 6-1/2 Inch LED Trailer Light, # STL70RB, does not contain reflectors. At this time we do not have any 6-1/2 inch oval tail lights that have reflectors in the lens. Instead, I would recommend using the Flange Mount Oval LED Trailer Light, # STL78RB, and adding the Snap-On Reflector Ring, # A78RXB. As mentioned in the title of the product, this ring will simply snap over the light on top of the mounting flange to provide a reflector...
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  • Trailer Tail Light Options for a Tear Drop Trailer
  • The Aero Pro Submersible LED Trailer Tail Light, # STL36RB, is a surface mount light. To mount this light you would need to have 2 or 3 bolts sticking out from the surface of the trailer because this light has slots on the back that fit over the bolt head and hold it in place. Is does not come with mounting hardware and a special bracket is not needed. The license plate light is made to shine down through the bottom. I would go with a flush mount light like # STL34RB. These lights...
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  • Will Snap-on Reflector Ring # A78RXB Fit Optronics GLOLight LED Stop/Turn/Tail Light # STL178RFPB
  • Although the Snap-on Reflector Ring, # A78RXB, will not fit the STL178 series lights like the Optronics GLOLight LED Stop/Turn/Tail Light # STL178RFPB, I do have a solution for you. Take a look at the Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, # STL78RB. This light was designed to be used with the reflector ring. I spoke with my contact at Optronics and they do not offer a reflector ring for the STL178 series lights.
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  • Will Optronics Turn and Tail Light # STL78RB Need Additional Power Source on 2013 Toyota Camry
  • To use the Optronics 6-1/2-Inch Turn and Tail Light # STL78RB with your 2013 Toyota Camry, you will not need an additional power source. Each of these lights draw draw a fraction of the power of incandescent bulbs and are DoT-compliant. This item would connect using 3 wires: Turn signal and brake (red), tail light (black), and ground (white). I have provided a link to a video review of this product. To hook the Optronic light to your vehicle, I recommend the Tow Ready Custom Fit...
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  • Can Optronics 3-Function LED Trailer Stop/Turn/Tail Light STL78RB Be Wired for One Function
  • The Optronics Sealed, 6-1/2-Inch Oval LED Trailer Stop/Turn/Tail Light # STL78RB is a 3-function LED trailer light designed to display the combined stop/turn signals and running light (or tail light) signals in trailer wiring. If you wanted this light to serve only one function, such as brakes, then yes, you could wire both the black tail light wire and the red stop/turn light wire to that one circuit. The white wire is ground. LED trailer lights are super-efficient, using only about...
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  • Left Trailer Brake Light Does Not Work But All Other Lights Do
  • It is strange any time a turn signal works but the brake light on the same side doesn't. this is because the brake and turn signal lights are on the same wire/bulb. The usual culprit is a bad ground. 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. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out....
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  • Trailer Taillight Wiring Kit with Taillights Less than 8 Inches Wide by 3 Inches Tall
  • The over 80 inch trailer lights are all over 8 inches wide. We do carry surface mount lights that are less than 8 inches wide and 3 inches tall but they are not rectangle in shape, they are oval. These options may work for your application. The Sealed, 6-1/2 inch Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10-Super Diode, item # STL78RB, is mounted 7 inches on center and is only 3/4 inch deep. We also have the Sealed, 6-1/2 inch Oval Trailer Stop, Turn and Tail Light, Flange...
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  • Can Trailer Hitch Mount Cargo Carrier # 63155 be Used with a Different Light Kit
  • I went out to the warehouse and measured the opening for lights in the cargo carrier, # 63155. The opening itself is 6-3/4 inches long by 2-1/2 inches tall. The bracket part of the carrier that the light sits in is 7-7/8 inches long by 3-1/2 inches tall. You would be able to drill some holes and mount light # STL78RB to the bracket part of the carrier. It mounts on holes that are 7 inches apart lengthwise and 2-3/4 inches apart top to bottom. You would really only need the 2 side mounting...
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  • Oval Trailer Light for Use on the Back of a 2016 Ford F-250
  • If you want the light to plug into a 4-Way flat connector on your 2016 Ford F-250 then I do not recommend # STL211RB because it has a reverse light function and the reverse light circuit is not carried in the 4-Way. I recommend flange mount light # STL78RB which does have stop, tail, and turn signal functions. Keep in mind that trailer lights only have 1 input for turn signals so if you were to wire in that corresponding wire to the green and yellow wires on a trailer side 4-Way then...
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  • Recommended LED Tail Light to Use with Trailer Light Mounting Bracket # BK70BB
  • The Optronics Sealed 6-1/2 Inch Oval LED Tail Light # STL78RB referenced in your question is a flange mount light that includes 4 mounting holes. The mounting holes are spaced 7 inches apart lengthwise and 2-3/4 inches apart widthwise. The Optronics Trailer Light Mounting Bracket # BK70BB that you also mentioned will not be the best fit for this particular style of light. The bolt holes on the bracket are spaced apart on center by a length of 6-11/16 inches, so they will not line up with...
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  • Availability of Multifunction LED Trailer Taillights for Use on a Motorcycle
  • The MCL19RB and MCL19CRB are clearance light so they have only one function. For more than one function, stop, turn, brake, you will need to look at taillights. I have included a link to the oval, LED taillights below. One that is very similar to the lights you referenced is the Sealed, 6-1/2 inch Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode, # STL78RB.
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  • Can LED Brake and Turn Signal Lights Replace Incandescent Lights on an Old Trailer
  • Yes, you can use LED light in place of incandescent lights for brake and turn indicators on your trailer however, you will want to replace them all for continuity sake. Although both LED and incandescent lights work off of 12 volts, the incandescent lights pull more amperage and may burn the LED lights out prematurely if you mix LED and incandescent lights. I have attached a brief video review of the Optronics Oval LED Light # STL78RB that you referenced.
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  • Optronics Oval LED Light Recommendation to Replace an Older Style Optronics Light
  • I do have a solution that should work for you, but we do not carry any Optronics lights with the style connector you have. You could get a Optronics Trailer Light # STL78RB that you referenced, and to install it you would just want to cut of the connector that is on your trailer and then wire the the three wires to the wires of the # STL78RB. The white wire of the # STL78RB will run to the ground wire of your trailer wiring, the red will run to the turn signal/brake wire and the black...
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  • Adding Additional Taillights to 6 by 10 Utility Trailer
  • I don't have a wiring diagram specifically suited to what you're wanting to do, but I can certainly explain how to wire the additional lights. If you're wanting to add the # STL78RB lamps, the red wire taps into the turn signal/brake circuit, the black wire connects to the running lamp circuit and the white wire grounds to the trailer frame. You may tap into the existing trailer taillight circuits. Since these are LED taillights, the additional voltage draw will be minimal. For your...
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Info for this part was:

Expert Research:
Michael L
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Jacob T
Updated by:
Adele M
Expert Research:
Brandon M
Expert Research:
Adam R
Updated by:
Laura H
Installed by:
Cole B
Expert Research:
Lori W
Photos by:
Amber A
Expert Research:
Jeffrey L
Video by:
Chris R
Installed by:
Andrew S

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