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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
Our Price: $76.33
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Shipping Weight: 3 lbs
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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. Great 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 (211)
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Optronics Trailer Lights - TLL16RK

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

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   (211 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 am happy with how fast it was delivered. But the packing worried me. The small plastic lights were just tossed into the box along with the very heavy trailer hitch. The edge of the box was torn. The heavy metal hitch could have very easily crushed the plastic items. Maybe those could have been placed inside a rolled up paper bag.

But lucking out there was no breakage.

I will review after I install. But I like it. The led light wires are big enough to splice onto other wires.

Consider me happy


Could have bought same quality at Harbor Freught for $[XX] less!! Typical made in China inferior hardware, missing bolts, not enough connectors, etc

Etrailer Expert

Brooke M.


It sounds like you are missing a lot from what should have come with this part! I will have our customer service team reach out to you about this.


The LED trailer lights installed by Trailer Works continue to perform well after over a year of service. No leaks.


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.


Worked with Paula S of to select the best product for my needs at the best price. Paula was very helpful. Product was scheduled to be delivered on Tuesday and actually arrived a day early on Monday! Very impressed with this service and would highly recommend checking out for any trailer needs.


Great product. Best price. Quick shipme nt.


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

Terry P.


They are still working perfectly! Great not having to worry about my trailer lights while i tow my boat


Love, love, love youy TLL16RK lights!
them on the Equi-Still Portable Equine Stocks we just shipped to the USA from NZ!
Lizzi Thompson


I was impressed by the quality and instructions provided!


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.


Great product. Easy to install and very happy with it.


Product was everything it was advertised to be. Installed easily and is working great. Lights are bright and work well.


Love the product. I was looking on eBay for parts to fit my present lights. This system is much better and more inclusive for parts than anything I found on eBay. I started out thinking I would just replace one taillight (or both) on my aged boat trailer. Replacing the entire system is a far better decision. Vast quality improvement for the same money. But the videos and telephone/email supports for placing orders at etrailer are phenomenal. They have become my "go to" source for my trailer needs. Great products, great prices, great support. Also, I received the lights faster than expected . It is easy to see that they care about their customers and have confidence in their products.


The lights fit to opening perfectly


good quality, nice and bright, easy to install.


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

Norm C.


Working fine, nice and bright. is still my go-to source for all things trailer.


fast delivery & anything not made in China is an improvement , thank you


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


The lighting package I received was easy to install and is twice as bright as the original set I replaced. I would highly recommend to anyone looking to replace their boat trailer lights. Excellent product!


Took me about an hour to install and the new lights look great!


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.

Etrailer Expert

Mike L.


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.


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.

John G.


All LED lights continue to work perfectly. I remain very satisfied about the product and service from etrailer.


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.

Daniel G.


Its been a year, and I couldnt be happier with these tail lights. I highly recommend them and etrailer. Thanks again.


Easy to order delivery on time.


This is a good deal. I used this package to re-wire my entire trailer. The one I bought was 18 gauge. You couldn't find the wire size anywhere in the description, so I hope that info helps somebody. You are required by law to have certain lights and reflectors on your trailer. In addition to tail and brake lights, these two tail lights contain 7 required fixtures, 4 reflectors, license plate light, and rear side lights. The plastic license plate holder is perfect. It flexes/swings as you put your boat in and out of the water, so your plate won't bend. I used the little blue quick connectors to add the sidelights to this harness. I used plenty of grease at my connections and liquid electric tape to seal them. No problems so far!

Show More Reviews

See what our Experts say 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...
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  • What is Difference Between Optronics Trailer Taillight Kit TLL16RK and TLL160RK
    The two kits both have the same taillight but the part # TLL160RK only comes with the two light assemblies whereas the part # TLL16RK comes with additional wiring to from the front of the trailer to the rear as well as a license plate bracket. Basically one kit is for replacing everything on the trailer and other is for just the lights.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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    Image 1 for
  • Do The LED Trailer Lights Have A Top And Bottom
    Yes there is a top and bottom side of the LED trailer lights # TLL16RK. The driver side light has a license plate light which needs to be facing the ground. That is the easiest way to tell if they are oriented correctly.
    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 # TL16RK instead.
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  • 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 # TL16RK. This comes with the LED taillights you want, clearance lights, license plate bracket and wiring/connectors so it's all you'd need.
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  • 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.
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  • 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...
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  • 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.
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  • 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...
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  • Only One Tail Light Works on Trailer With 4-Way & Vehicle With 5-Way
    You should be fine with your Tacoma's 5-way and trailer's 4-way since the lighting functions will all be attached. So either the light is bad and needs replacing or, from how you are describing the wiring set up, the light that doesn't work is not properly connected. Each light should have its own wiring run to it so you may need to run wire directly to it and not through another light, which you can do with 16 gauge wire # 16-1-1. I have also added links to a couple help articles below...
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  • 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.
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  • Availability of Bundle of all Trailer Tail Lights and Wiring
    It is definitely possible. We have an all-in-one kit, the Optronics Waterproof Light Kit with Wiring Harness part # TLL16RK. The lamps included in this kit are very similar to the Wesbar lamps you referenced. The kit comes with with 2 universal-mount, waterproof LED tail lights, a license-plate bracket, a 25-foot wiring harness with 4-pole connector and mounting hardware. For prices please check out the product page. I have included a link to a video of the installation of the trailer...
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