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LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger Side

LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger Side

Item # STL14RB
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Optronics Trailer Lights - STL14RB
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8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. Durable plastic housing and acrylic lens. 12 LEDs. Stud mount. 3-Wire pigtail. Lowest Prices for the best trailer lights from Optronics. LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger Side part number STL14RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (88)
  • Q & A (12)
  • Videos (2)
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Optronics Trailer Lights - STL14RB

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

8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. Durable plastic housing and acrylic lens. 12 LEDs. Stud mount. 3-Wire pigtail.


  • Low-profile trailer tail light serves 6 functions
    • Stop light, tail light, turn signal light, side marker light, side reflex reflector, and rear reflex reflector
  • 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: passenger's side (right-hand side)
    • Driver's-side light (STL15RB) sold separately
  • Dimensions: 8" long x 2-7/8" tall x 2-13/16" deep
  • Diodes: 12
  • 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 STL14 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.

STL14RB Optronics Low Profile Combination LED Boat Trailer Taillight - 12 Diodes - Red Lens - Right Side

Video of LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger 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 - 6 Function - Submersible - 12 Diodes - Passenger Side - STL14RB

Average Customer Rating:  4.8 out of 5 stars   (88 Customer Reviews)

8" x 2-7/8" Rectangle. Low-profile trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. Durable plastic housing and acrylic lens. 12 LEDs. Stud mount. 3-Wire pigtail.


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! 691596


The first time I received my order I had the right driver side light and wrong passenger light..called them the same evening and over the phone had another light on the way..received new light today and already installed it looks great..thanks to etrailer for great service and fast shipping first time ordering from them and won’t be my last 688308


I would give 5 stars but the passenger side light came with cadmium plated bolts/nuts instead of 304 stainless steel. What does that save the supplier; $.50 maybe? That was the only disappointment. Drivers side did come with stainless steel bolts/nuts. Easy to install. 671546


Product was delivered a head of schedule and in very good condition. I haven’t hooked it up yet. 737696


Great product help and installed as specified with customer service. Absolutely satisfied with trailer and recommend as the place to buy accessories 726839


Sara did a great job with my order and it got to me in a timely fashion. I needed in a hurry so I put it on my boat trailer and go fishing. Sara got to me quickly and got me going!! Sara has great people skills and knows her product. Answered all my questions! Give that girl a raise!!!!! THANKS SARA!!! 716681


Product works good. 714352


The tail light came as advertised. 694276


Exactly as expected. Fast shipping. 674740


Excellent product. Fit perfectly and works as expected. I would not hesitate to by another should I need one. 673830


Great Product, bright and adaptable. I used them for a more stylish tail light on my 1960 Studebaker Pickup! Actually this was the second set as I backed into a pole and destroyed one of the first ones I had installed three years ago. The fact that I came back to buy an identical replacement after three years is confirmation for my 5 star rank. 671077


I haven't had a chance to install the light yet. 665420


The lights have functioned perfectly on my equipment trailer. 665008


Exactly as ordered. 652781


Installed a year ago Still works well! I used boat every weekend and it gets dunked in saltwater! 636000


great price on a quality product! 634859


Exact replacement part. Easy to install. Replaced broken light from backing mishap. I happy that I could buy just one and a two light kit since I broke only one light. 621804


These are great lights. going to buy more because we fish a lot and sometimes they get hit by others backing trailers, or me backing the trailer.... 620498


Perfect 612500




Said 12 led, but I count 8 leds, other than that it worked and installed as needed 594570


Well made and waterproof! 593739


I receive just what I wanted. It arrived quickly and in good condition. The price was very reasobable. 585548


Very happy with the service An shipping good quality items at a fair price 584367


Best trailer lights I've ever owned! 12 months of in and out of lakes 10or 12 times a month. There's no moisture in my lights and,I don't have to unplug them before unloading. Great product u won't b disappointed. 580580

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Info for this part was:

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

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