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LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness

LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness

Item # TLL16RK
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TLL16RK - Red Optronics Trailer Lights
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8-1/16" x 2-7/8" Rectangle. Waterproof lights act as brake, tail, turn, side marker, side reflex, rear clearance, rear reflex, and license plate light for trailers. Surface mount - hardware included. 3-Wire pigtail. 25' Wiring harness. Lowest Prices for the best trailer lights from Optronics. LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness part number TLL16RK can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (164)
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Optronics Trailer Lights - TLL16RK

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

8-1/16" x 2-7/8" Rectangle. Waterproof lights act as brake, tail, turn, side marker, side reflex, rear clearance, rear reflex, and license plate light for trailers. Surface mount - hardware included. 3-Wire pigtail. 25' Wiring harness.


  • Rectangular combination tail lights are designed to serve 7 functions on trailers over 80" wide when properly mounted
    • Stop, tail, turn, side marker, side reflex, rear clearance, and rear reflex
    • Built-in license plate light on driver's-side light illuminates license plate
  • Sealed, waterproof construction is submersible
    • Designed for marine trailer applications
  • Durable surface-mount technology (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • 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
  • Red acrylic lens screws on and can be easily replaced
  • Molded plastic housing
  • Mounts on surface of trailer - stainless steel hardware included
    • Includes license plate bracket for mounting driver's side light
  • 3-Wire pigtail
    • 25-Ft Wiring harness for making connections
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting
  • P2PC rated


  • Configuration: driver side (STL17RB)
    • Passenger side (STL16RB)
  • Dimensions: 8-1/16" long x 2-7/8" tall x 2-13/16" deep
  • Diodes: 40
    • Driver's-side light: 22 diodes
    • Passenger's-side light: 18 diodes
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.259 amps
    • Tail light: 0.062 amps
  • Lifetime warranty on LEDs

Optronics STL16/17 Series LED Combination Marine Tail Light Measurements

Sealed, Waterproof Trailer Light

The waterproof construction of these lights make them ideal for use on trailers that may be submerged, like a boat trailer. Each circuit board is sealed, which means that water will not damage the diodes or circuit board.

Combination Lights for Trailers Over 80" Wide

Flatbed trailer over 80" wide with combination tail lights

If a trailer is 80" or wider at its widest point, then it requires rear clearance lights in addition to basic trailer lights. These clearance lights indicate the width of the trailer when it is viewed from the back.

To meet these requirements on a flatbed utility trailer where the bed extends past the wheels, you can install combination trailer lights that include the rear clearance function. For proper mounting, the lights must be installed at the widest points on the rear of the trailer - one on each corner.

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and side marker light.

TLL16RK Optronics LED Combination Tail Lights for Marine and Boat Trailers over 80" Wide - Submersible - Driver and Passenger Side - 25' Wire Harness

Alternate part number: TLL-16RK

California residents: click here

Customer Reviews

LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness - TLL16RK

Average Customer Rating:  4.8 out of 5 stars   (164 Customer Reviews)

8-1/16" x 2-7/8" Rectangle. Waterproof lights act as brake, tail, turn, side marker, side reflex, rear clearance, rear reflex, and license plate light for trailers. Surface mount - hardware included. 3-Wire pigtail. 25' Wiring harness.


I needed an extra set of stop/turn lights for a bike rack. You couldn’t see the existing lights when I put a bike cover on. Problem solved. Very bright. Works and looks as described.


I built a small trailer to use at the farm and road capable, i bought all my parts from etrailer including the light kit, works great and have always been pleased with the service provided by etrailer


My new F150 was telling my LED trailer light had a fault. Although they worked. I installed these and truck isn’t giving warning anymore. These lights work great. Very bright. Also lighter then previous LED trailer lights.


The LEDs arrived very quickly. They were a perfect fit for the old incandescents they replaced making the installation quick and easy. Thank you!

They are still working perfectly! Great not having to worry about my trailer lights while i tow my boat
Terry P - 05/22/2015


The trailer lights got delivered this morning and on the waverunner trailer this afternoon. Easy to install and are a lot better than the stock lights I removed to put these on. Thumbs-up to etrailer.


Lights very well made wiring and hardware good quality easy to install.

Working fine no issues!
Kenneth - 12/12/2021


Nice and bright. Submersible and functional. Great product.


Easy install. Lights still working great after 1 year of use.

No issues. Lights still working perfectly after one year
John B - 03/25/2022


I have always received great service and will always use etrailer.


It is a good kit, was easy to install and the led’s are great lights, I put these on my neighbors trailer for letting me borrow it to get some cedar posts.


Great product! 1 year and still works p erfectly.


If you are upgrading to LED , make sure to check you current trailer wiring. This is a 5 pin flat connector with a short piece of wire for the ground. 2 -left /2 -right... The LED lights require 3 wires...hence you have to attach the white remaining wire (short piece with an wire lug) to the trailer frame or run an additional wire for ground...


Thanks for this 1 year review opportunity. My purchased was changing all my boat trailer lights to LED. They are working excellently with no problems. I think they are better than what I see on newer boat trailers. Thanks for your excellence advice, service and prompt shipping.

All LED lights continue to work perfectly. I remain very satisfied about the product and service from etrailer.
John G - 09/14/2020


Bought this kit to replace a failed set of waterproof filament type boat trailer lights. This is my second purchase of LED lights, I love how bright they are. Total cost of this complete LED set was only a few dollars more than the cost of replacing just one failed filament bulb in a sealed pod set. With six trailers at my place, I see many more LED sets in my future! As always, good price and fast shipping from

Working fine, nice and bright. is still my go-to source for all things trailer.
Norm C - 06/09/2018


Works well but id prefer the wires to be longer and packaged more secure. One of the 3 tabs on the package were unsecured and the 2 taillights were it contact with one another. Luckily no damage. this could've happened when USPS threw the package over my front gate when delivering


You guys amaze me!
Ordered boat trailer
led lights and harness 9-26.
It shipped two hours later and I installed it with no problem Friday 9-29. Everything perfect. Installed within 72 hours of ordering. My third purchase this year and I’ll be back!

Thank You!!!!!!
A very satisfied customer.


Good kit with all the connections you would expect. Nice light output and no having to clean corrosion every year to get them working. Or have spare bulbs Incase you forget to unplug the lights and let them cool.before backing in the water.


I give the product a good rating So far. I'm not finished yet but it's coming along. The negative to me is the instructions. First is the size of printing (small and unreadable) of the combined picture of the trailer and electrical schematic (2" x 1"). It is very hard to follow and understand. Helpful tips would be a good idea. The added rear light bar I ordered needs some attention as to mounting and wiring. I think once I get through with the wiring and assembly I will be happy. All the lights and mounting technique seems well done.

If you need some assistance with the install, were just a phone call away. If you use the provided link, you can see some trailer wiring diagrams and a help article that will provide more information for you.
-- Etrailer Expert Mike L - 07/11/2018


Great service


Great experience on etrailer + shipping, but the length of the wire assembly was incorrect. When I read 25' of wire, I expect I would have at least 25 feet from the lights to the connection on the truck. It is 25' if you connect the male and female together which then leaves you with no connection at the truck. I will either now have to splice in the wire (8 new potential break points), get a new male connector for the truck (leaving another connection point failure, or get new wire harness. I wish a longer wire kit was recommended at purchase vs. butt connectors that were too big.

BTW- The lights look great, but the wiring and the connections leave a lot to be desired.


This kit was fantastic. It was easy to install. I made a few mods, like soldering all the wire connections, then taping them. The lights are so much better than the incandescent ones I had before. Very pleased with this kit and etrailer. Resonable price and fast shipping were the icing on the cake.

Its been a year, and I couldnt be happier with these tail lights. I highly recommend them and etrailer. Thanks again.
Daniel G - 06/09/2017


Nice bright lights! Easy to install. These units on my 2002 trailer replaced Wesbar units of almost the same size and the mounting holes were the same size and pitch. The old incandescent Wesbar lights would have been easier to replace with LED units from the same manufacturer as they had quick connection plug-ins in the harness. The new ones did not and I had to cut out the plugs from the harness and solder the wires together. I did not replace the wiring harness with the one that was supplied but will keep it for a spare for the future.
The light assemblies have openings in the back face. It would have been nice if they were completely sealed to keep out mud and water thrown up from the trailer wheels. This will require that you remove the lens from time to time to clean them. This is a problem that caused me to be pulled over by police for dim lights last year. Hopefully the brighter LED's will prevent this.
All in all, a nice product for the price though.


I have owned these lights for at least a year. Still love them. No problems whatsoever over the last year. etrailer is a great vendor to buy accessories from. Great products and customer service !!!

No problems with these lights after 2 years. Still working like new. Great lights!!
Scott R - 05/17/2018


The product was perfect for my needs and easy to install.


Received my lights quick as promised. Service was great, lights appear to be good quality, only time will tell the whole story. The 25' wiring harness is a little misleading, the length includes the tow vehicle end which is about 5 ' so the actual trailer end is only about 20' long but it is nice heavy wiring. Being a light kit for an over 80" trailer there was no wiring provision for the center rear light bar. Overall I'm satisfied with the purchase will buy from hear again.

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Complete LED Lighting and Wiring Kit for a Trailer Over 80 Inches Wide
    Yes, we do have the complete kit with all the wires and lighting you will need to rewire and set your trailer up with new lights. We have two options depending on the amount of side marker lights you want. The first is the LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness item # TLL16RK and the Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness item # TL16RK. I have linked an installation video that will...
    view full answer...
  • The Difference Between the Optronics # TLL16RK and # TLL36RK Lights
    You are right, there is not much of a difference between the Optronics # TLL36RK light and Optronics # TLL16RK light. The largest difference is the # TLL36RK does have amber lights, as you realize, and the red trailer lights with # TLL36RK have 17 LED lights compared to the 25 LED lights on the # TLL16RK red lights. Also the # TLL16RK red trailer lights are an inch larger than the # TLL36RK lights. Other than those differences, both lights come with a license plate mounting bracket...
    view full answer...
  • Would Optronics Light Kit TLL16RK Be Recommended Taillight Kit for Toy Hauler
    Our opinion would be you are on the right track! The Optronics light kit part # TLL16RK would be a great option as it is LED and has a license plate light built into it that you would mount over the included license plate bracket. For a version that includes a couple LED clearance lights you would want the part # TLL36RK instead.
    view full answer...
  • Replacement Taillights for 2003 Heritage Trailer
    We carry all sorts of complete trailer lights as well as replacement parts for most major brands like Optronics, Petersen and Bargman. If you can remove one of the existing light bases you may be able to find a brand and/or part number that will usually be helpful for finding an exact replacement if one is still available for your 2003 Heritage. If not we can help you with a new lights. On the linked page you can view all 8 x 3-inch rectangular submersible trailer taillights. This is the...
    view full answer...
  • Over 80 inch Wide LED Trailer Taillight Kit for 1998 Shorelander Boat Trailer
    We do have an over 80 inch LED trailer taillight kit that's submersible and would work great on your 1998 Shorelandr boat trailer as the part # TLL36RK. This comes with the LED taillights you want, clearance lights, license plate bracket and wiring/connectors so it's all you'd need.
    view full answer...
  • Recommended LED Lights For MaxxTow Aluminum Cargo Carrier For 2-Inch Hitches
    We do not have any specific light kits for your MaxxTow Cargo Carrier MT70422, but I do have a solution for you. I recommend part # TLL16RK. This includes LED lights for both sides of the cargo carrier and also the wiring needed to plug into your vehicle. Mounting hardware is included but with the cargo carrier rails you may need to buy longer hardware to secure the lights to the carrier.
    view full answer...
  • Converting Karavan Trailer Incandescent Taillights to LEDs
    One way to add LED lighting to your Karavan trailer is to replace the entire light assembly, and we do carry replacement LED-type lights for many applications. The linked page displays all of our complete rectangular light units with LED operation. Another way to go is to check whether there is an LED replacement for the incandescent bulbs in your existing lights. We have LED replacements for many popular bulb types. The other linked page will allow you to click on your existing bulb...
    view full answer...
  • Where Does the White Wire Go on Over 80 Inch LED Trailer Tail Light Kit # TLL16RK
    On a trailer, the white wire will need to be attached to a clean and corrosion free bare metal surface on the trailer frame near the coupler. One tip I can add with light kit # TLL16RK is to run jumper grounds from the light to the trailer frame on the side with the license plate holder because the holder can interfere with a good ground connection. I have incldued a link to a video showing a typical installation.
    view full answer...
  • How to Determine What Trailer Lighting is Required Based on Dimensions of the Trailer
    To determine what you will need as far as trailer lighting is concerned you will need to go out and measure the dimensions of your trailer. Once you know the overall length and width check out the FAQ article I attached to the right. It will walk you through how to determine what lighting is required for your trailer. Most likely the # TLL16RK would be all that you would need to legal, but check out the FAQ first. If your trailer already has wiring run for trailer lights you would only...
    view full answer...
  • Gauge of Wire Used in the Waterproof, Over 80" LED Trailer Light Kit # TLL16RK
    According to Optronics the gauge of wire used in the Waterproof, Over 80" LED Trailer Light Kit with 25' Wiring Harness # TLL16RK is 20 gauge. This may seem like a very light gauge (it is), but when you consider that these lights are LEDs which draw a very small amount of amperage it is more than adequate.
    view full answer...
  • Replacement Side Marker Lights for a 2000 Tracker Trailstar Boat Trailer
    I pulled up some pictures online of what appears to be your boat trailer and it looks like there is a cutout on the fenders that will allow a light to install with a grommet. Without knowing what size the lights are the best option I can give you would be to check out the link I attached that will take you to a page that has all of the oval shaped, recessed mount trailer taillights we offer. You will want to select your light size from the filters and the correct lights will be listed.
    view full answer...
  • LED Trailer Taillight and Wiring Kit for Military Trailer
    We have the Waterproof, Over 80" LED Trailer Light Kit with 25' Wiring Harness # TLL16RK that would basically come with everything you'd need. It comes with two LED trailer taillight assemblies, all new wiring for them and the trailer, and then a 4-way connector for the front of the trailer. I attached an install video for this kit for you to check out as well.
    view full answer...
  • Trailer Taillight and Wiring Kit Recommendation for 1994 Four Winn Boat Trailer
    For that we have the Waterproof, Over 80" LED Trailer Light Kit with 25' Wiring Harness # TLL16RK which comes with all new wiring, taillight assemblies, and a license plate bracket.
    view full answer...
  • Will Waterproof, Over 80" LED Trailer Light Kit with 25' Wiring Harness Fit Karavan Boat Trailer
    Yes, the Optronics taillight kit part # TLL16RK would work great on your Karavan trailer. This is a standard style of trailer taillight that would work great on your trailer. I attached a picture of it install on a similar boat trailer.
    view full answer...
    Image 1 for
  • What Gauge and Composition Are the Wires on the LED Combination Trailer Tail Lights by Optronics
    I reached out to my contact at Optronics and they were able to give me some additional information on this light set. The LED Combination Trailer Tail Lights # TLL16RK have full copper wires that are 18 gauge wires.
    view full answer...
  • LED Trailer Light Kit for 1995 Four Winns Trailer
    For a standard RV led trailer taillight kit the part # TLL16RK that you referenced would work great. It comes with new wiring, connectors, a license plate bracket as well as two waterproof and very visible LED trailer taillights.
    view full answer...
  • What Are Dimensions of Optronics LED Light Kit # TLL16RK
    I pulled the Optronics LED Trailer Light Kit, part # TLL16RK, from our warehouse and measured the outside dimension. I shot a little video as I measured the lights for you to check out. The outside dimensions of the lights measure approximately 8 inches by 2-3/4 inches. There are not any amber reflectors on this light kit, perhaps you are referring to another kit. Part # TLL16RK has red reflectors on the side.
    view full answer...
  • Is an Over 80 or Under 80 Trailer Light Kit Needed for a Tow Dolly
    The 80 inches in question is the overall width of the trailer, or in this case, a tow dolly. Even if a trailer or tow dolly is under 80 inches, you can still use an over 80 inch light kit if you wanted to. But a trailer that is over 80 inches cannot use an under 80 kit because it will not meet the requirements. For over 80 inches you can use # TLL36RK or # TLL16RK.
    view full answer...
  • Do Trailer Lights Have Light for License Plate
    We sell trailer taillight kits that have a driver and passenger side and the one of them will have a clear lens on the bottom for illuminating a license plate. The part # TLL16RK comes with two lights, one with a license plate light, a plate bracket, and wiring which would work well. The capsule you found are no longer available unfortunately.
    view full answer...
  • Troubleshooting part # TLL16RK not Illuminating
    We can get you set! To answer your question the wires on the LED Combination Trailer Tail Lights part # TLL16RK are going to be Brown= tailight Green= turn and brake White= ground The white wire is where I believe the problem lies. Since the entire housing is not lighting it is the likely the ground wire is not getting a good connection to the frame of the trailer. It could have been incorrectly wired but after confirming that is correct the ground would be my next stop. You want...
    view full answer...
  • Replacement Lens for Optronics Waterproof LED Trailer Light Kit # TLL16RK
    Yes, the Replacement Tail Light Lens # AL16RB referenced in your question is the exact replacement lens for your Optronics # TLL16RK Trailer Lights. This is a direct replacement part and will fit your existing assembly perfectly. The lens itself measures 8-1/16 inches long and 2-7/8 inches in height. It is designed for the LED bulbs that you mentioned. I have attached a short video demonstration on this replacement lens that you can also check out.
    view full answer...
  • Replacement Lens for the Lights in Trailer Light Kit # TLL16RK
    Yes, for the lights used in trailer light kit # TLL16RK, the correct replacement lens is # A16RB. Regarding blowing a tire, always make sure that your trailer tires are inflated to the maximum psi as indicated on the tire. Trailer tires (designated with ST in front of the size) are built with a thicker sidewall to handle more vertical load. If not fully inflated, the thicker sidewall leads to excessive heat build up and can cause the tire to fail. I have included a link to our tire...
    view full answer...
  • Incandescent Trailer Taillight that Has 2 inches Between Mounting Studs
    For a non-LED trailer taillight that has 2 inches between the mounting studs you'd want the Optronics Combination Trailer Tail Light part # ST16RB.
    view full answer...
  • Replacement Oval Tail Lights for 2001 Karavan Jet Ski Trailer
    We have many submersible LED tail light options that are oval. I've attached the page for all of your options which you can narrow down based on mounting preference and size. For instance we have the surface mount # STL178RK1B or the recessed mount with rubber grommets # TLL12RK.
    view full answer...

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