1. Trailer Lights
  2. Optronics
  3. Tail Lights
  4. Rectangle
  5. LED Light
  6. Red
LED Combination Trailer Tail Light - 7 Function - Submersible - 18 Diodes - Driver Side

LED Combination Trailer Tail Light - 7 Function - Submersible - 18 Diodes - Driver Side

Item # STL15RB
lowest price pledge
Our Price: $28.90
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.83 lbs
In Stock, Ships Today
Trailer Lights STL15RB - LED Light - Optronics
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. Durable plastic housing and acrylic lens. Stud mount. 3-Wire pigtail. Lowest Prices for the best trailer lights from Optronics. LED Combination Trailer Tail Light - 7 Function - Submersible - 18 Diodes - Driver Side part number STL15RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (64)
  • Q & A (8)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL15RB

  • Tail Lights
  • Rectangle
  • LED Light
  • Red
  • Surface Mount
  • 8L x 3W Inch
  • Submersible Lights
  • Optronics
  • Stop/Turn/Tail
  • Side Marker
  • Side Reflector
  • Rear Reflector
  • License Plate

8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. Durable plastic housing and acrylic lens. Stud mount. 3-Wire pigtail.


  • Low-profile trailer tail light serves 7 functions
    • Stop light, tail light, turn signal light, side marker light, side reflex reflector, rear reflex reflector, and license plate light
  • Sealed, waterproof construction is submersible
    • Light is designed specifically for boat trailers
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable plastic housing
  • Red lens over white LEDs
  • Mounts on surface of trailer - hardware included
  • 3-Wire pigtail hardwires to trailer
  • DOT compliant


  • Configuration: driver's side (left-hand side)
    • Passenger's-side light (STL14RB) sold separately
  • Dimensions: 8" long x 2-7/8" tall x 2-13/16" deep
  • Diodes: 18
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.252 amps
    • Tail light: 0.135 amps
  • Quantity: 1
  • Lifetime warranty on LEDs

Optronics STL15 Series LED Low Profile Combination Tail Light Diagram

Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The circuit board is sealed, which means that water will not damage the diodes or circuit board.

STL15RB Optronics Low Profile Combination LED Boat Trailer Taillight - 18 Diodes - Red Lens - Left Side

Video of LED Combination Trailer Tail Light - 7 Function - Submersible - 18 Diodes - Driver Side

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

Video Transcript for Optronics LED Trailer Tail Light Installation

Speaker 1: Today we're going to be taking a look at the Optronics LED six function trailer taillight for the passenger side, part number STL14RB. It's also available for the drivers side with a seven function using part number STL15RB.So here's what our lights look like once we have them installed. These are going to be a nice upgrade over incandescent lights and they're going to last up to 50 times longer since they are LEDs. Now they have six functions on them. They're going to act as our taillights, our brake lights, right turn signal, our side marker light, as well as a side reflector and a rear reflector. Our circuits are going to be completely sealed which means the light's going to be submersible which is going to be great for those boat trailers or any other trailers that have a lot of exposure to water.

Since they are LEDs, we're not going to have to worry about replacing any bulbs or any flimsy filaments. The housing is going to be made out of plastic and it's going to have a red acrylic lens on it. Our lights are going to be DOT compliant and they're going to mount on the surface of your trailer and they do include the hardware necessary to mount them up. Our lights are going to measure eight inches long by two and seven eights inches tall by two and 13/16ths inches deep.Now since they are LEDs, our lights aren't going to take very much power at all. Our stop and turn signals are only going to require .252 amps and our taillights are only going to require .135 amps and the taillight itself is going to have a power draw of 12.8 volts.The driver's side is going to have all the same features as the passenger side as well as having that added function of a license plate light illuminating it down below.

So if you're shopping on our website for different lights for your trailer, I do definitely recommend the LED over some of the incandescents because our LEDs are going to last longer, they're going to be brighter, take less power and we're not going to have to worry about replacing any of the bulbs inside.Our lights are going to be extremely simple and easy to install. We're just going to have a couple pieces of hardware to put in place as well as a few wires that are going to connect to our existing trailer wiring. So now that we've seen what our lights look like and gone over some of the features, let's show you how to get them installed.To begin our installation, we're going to need to remove our old taillight. Now there should be two studs that are holding it in place, so you're going to want to grab a socket or a wrench to take the two nuts off the back end. Once you have the nuts removed, you can go ahead and push the taillight out and you can pull it through.

Now you want to be careful when you're running your wires through. We can pull out taillight out and then we can come downstream a little bit and cut our wires. We remove our old taillight and then we can grab the new assembly.Our lights are going to come with new hardware so we're going to have a few carriage bolts. We're going to have a few slots on the back that we can slide them in to. So the easiest way to make sure that you have them in place is to just line them up with your old taillight and you can slide the rounded square section into the slot.So we're going to take our wires and we're going to pass them through and we'll pull the excess out.

We're going to line up the bolts with the holes that are in our trailer. Then we can secure them with the Falange nuts on the back side. Get one on tight. For the other one, I'm going to take my ground wire which has the eyelet on it. I'm going to slide it over the stud and then attach the nut so I have a nice, good solid ground.I'm going to grab a seven sixteenths socket and we can tighten up the hardware. So we're going to have two more wires coming off the back of our light. One green and one brown. So we're just going to attach them to the color coding according to our trailer. So you're just going to strip back the end of your wire and you will need to provide some butt connectors. Now if you need some, you can pick some up on our website using part number, DW05744-5 and that'll be for a pack of five of them. Just crimp on our butt connector under our green wire. Put the other end of the green wire in and crimp it down. We'll do that for the brown wire as well.Now our butt connectors are heat train connectors and I'm going to be using a heat gun to shrink them down. If you are using an open flame, such as a lighter or a torch, I will remind you to be extra careful to not burn or char the connector or the wires themselves.So now I'm just going to take my wires, I'm goin to bundle them up and then secure them with a few zip ties. That way down the road if I need to make any kind of repairs to the wiring, I'll have this extra wire here but it'll be tied up out of the way.So now that we have this one in, if you did order a set, go ahead and repeat that on the driver's side. The only difference is is that there's going to be a little bit different color wires. With our lights all wired up, we can go ahead and check to make sure all the functions are working properly. You can see our taillights come on, as well as the brake lights, and the right turn signal. That'll finish up your look at the Optronics LED trailer taillight for the passenger side, part number STL14RB. Drivers side with part number, STL15RB.

Customer Reviews

LED Combination Trailer Tail Light - 7 Function - Submersible - 18 Diodes - Driver Side - STL15RB

Average Customer Rating:  4.8 out of 5 stars   (64 Customer Reviews)

8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. Durable plastic housing and acrylic lens. Stud mount. 3-Wire pigtail.


Light is very bright and was a direct replacement to the original. Easy install and looking forward to many years of service! 259863

Product working great one year later! Easy order and good quality.
Greg W - 06/11/2017



I upgraded to LED lights on the trailer of my 18' Crestliner. The lights arrived on-time and in good condition. The follow-up by etrailer was outstanding. The taillights are longer and not quite as high as the incandescent lights. They stick out approximately 2" further than the old lights, beyond the steel backing plate. I do not think it will be a problem. I like that I can now see my taillights in the mirrors. The two sets of holes in the steel backing plate did not line up with the new lights requiring me to drill an additional hole. The taillights and clearance lights are extremely bright giving me much better visibility from behind. The Deka Heat Shrink Butt Connectors worked very well. The epoxy easily sealed the crimp marks and formed a watertight bond. I haven't dunked the boat yet but I am very satisfied with the installation and do not anticipate any problems. 548817


I have tried various lights for a small boat trailer over the years.. these were the first that lasted more than a couple years. Highly recommend LED sealed lights. 724843


I haven’t installed my lights and tires yet but I couldn’t wait. Based on customer service and timely delivery alone, Hanna, Carol and George, awesome! Thank you! 691595


Great first time experience with etrailer..will come here for my trailer needs..light looks great and works great very bright 688314


The LED trailer lights truly do make a world of difference. The only thing that I do have to say that is not a positive, is the fact that I had to drill out my mounting brackets on my trailer so these would properly fit. In other words the factory holes on my trailer did not match the aftermarket product. As far as the LED light visibility goes, again there truly is no comparison. The LED lights rock 669793


Rick S. Was great, He new what I needed. I received it. And fit with no problem. 669713


The trailer light arrived promptly. The E trailer video regarding installation was great. I had no difficulty installing the light. It works great! I will likely replace the passenger side light later this summer. 655233


Exactly as ordered. 652782


Easy to install. Works like a champ. Used it to replace a damaged unit on a Holmes trailer. 643890


It's been over a year since I installed the lights on my boat trailer. They've been "dipped" in river and salt water several times and are still doing great. The old style incandescent bulb lights, sealed even, would have burned out long ago. Best lights I have ever had on my trailer. Thanks, etrailer 571871


So Far-So Good 567489


I am tech not. I have a flip phone and a VERY basic fire. I have had great results with everything I've ordered from Etrailer.Highly recommend Etrailer to everyone. 563053


I received my trailer light, and when I looked at it closely it was cracked in two places. there was a number on the box so I called it. the lady said if I could take a picture of the cracks and send it to them it would be helpful, so I did. they told me in an email how to return the light. in another email moments after that they said they pulled another one and are going to send it to be examined before being shipped, and if it's good will be shipped tomorrow (it was later in the day when this transpired). an email early the next morning stated that my trailer light was on its way. I think it's a great company to deal with and would recommend them. thank you etrailer 557252


As usual I ordered & received a quality product in a timely time frame and it is exactly what I wanted and has been installed on my 2019 "Toy Hauler!" Much better than what came as "Standard equipment!" 553060


Great lights there twice as bright as the lights I had him before both on directional stop and marker lights 546851


Lights were received a day or so before promised and installed easily. Brightest the trailer has looked in years. 542307


Fast service and an excellent product. I would highly recommend them to anyone. 527443

It’s been one year since purchasing lights and wiring for my trailer. Since then I have put new lights and rewired all of my trailers and everything is working fine. I highly recommend etrailer to anyone. They have excellent products, fast service, and competitive prices.
Ray h - 06/27/2019



Love the LED Lights, no issues with bulbs burning out because it get wet. I still try to remember to unplug the trailer, but have forgotten a few times, and have had no issue. 513307


This lamp is an easy replacement for the old incandescent light it replaces. It’s nice and bright and bulbs are long lasting. Do it! 512797


Exactly what I needed and the customer service agent was excellent. Received my shipment in two days using free ground. 508869


Work great. No more changing bulbs I ho pe. 503155


Thank you Crystal S. for all your help and support. Fastest shipping ever. Crystal was very knowledgeable and help me select the correct items I needed. I have ordered from these folks before, each time I have experienced Great customer service. Thank you all, very much. 501651


exactly what we needed, service from Christina is excellent and great info on product 498275



Show More Reviews

Ask the Experts about this Optronics Trailer Lights

Do you have a question about this Trailer Light?

  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer lights for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer light information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Edited by:
Leah B
Expert Research:
Michael H
Expert Research:
Adam R
Installed by:
Cole B
Installed by:
Robert C
Written by:
Amy B
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Brian T

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!

Call 800-298-8924