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LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side

LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side

Item # STL16RB
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Shipping Weight: 0.9 lbs
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STL16RB - Stop/Turn/Tail,Side Marker,Rear Clearance,Side Reflector,Rear Reflector Optronics Tail Lights
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8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated. Lowest Prices for the best trailer lights from Optronics. LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side part number STL16RB can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (196)
  • Q & A (0)
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  • Why etrailer?

Optronics Trailer Lights - STL16RB

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

8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated.


  • Rectangular trailer tail light serves 7 functions
    • Stop light
    • Tail light
    • Turn signal light
    • Side marker light
    • Side reflex reflector
    • Rear clearance light
    • Rear reflex reflector
  • Sealed, waterproof construction is submersible
  • 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 better light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable plastic housing with red acrylic lens
  • Mounts on surface of trailer - hardware included
    • Designed for use on trailers over 80" wide when properly mounted
  • 3-Wire pigtail
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting
  • PC rated


  • Configuration: passenger's side (right-hand side)
  • Dimensions: 8-1/16" long x 2-7/8" wide x 2-13/16" deep
  • Diodes: 18 diodes
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.259 amps
    • Tail light: 0.062 amps
  • Limited warranty on LEDs

Optronics Light Dimensions

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.

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.

STL16RB Optronics Combination LED Taillight for Marine Trailers More Than 80" Wide - Right Side - Red Lens

Alternate part number: STL-16RB

California residents: click here

Customer Reviews

LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side - STL16RB

Average Customer Rating:  4.8 out of 5 stars   (196 Customer Reviews)

8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated.


Great replacement for the older fixtures of this same type with incandescent bulbs. I replaced 4 old style lights on my Zieman ATV trailer with these LED units, and NOW you can see me.


Light only lasted 4 months, very disapp ointed.

One thing to try would be to double check wiring connections as sometimes if not secure can become loose. This item does also come with a limited warranty and so I have sent your information along to customer service.
-- Etrailer Expert Brooke M - 04/27/2022


I used these to add auxiliary tail, turn, and stop lights to my pickup truck. I'm very pleased with the results. Hopefully they'll get people's attention.


easy ordering, arrived on time, the right part and the right fit - easy install...and looks great


I got these led lights to replace my original trailer lights. Easy to install and a lot brighter, definitely recommend them for anyone wanting to replace there old trailer lights.

Still going strong.
Al T - 06/16/2021


Great product as usual from retailer. Delivery was slow but everything is slow


AAA +++ etrailer and I will get along just fine.


Shipping was on time and just what was ordered. I will purchase here again.


Boat trailer light has been submerged many times over the last year. Still burning bright and fully functional.


These lights look pretty good


Awesome bright LED light. So good, I ordered another set for another trailer. You will not be disappointed.


I needed to replace some of the lights on my boat trailer. The old light were incandescent and some of the bulbs had burned out, securing screws were rusted. Product was exactly what I was looking for. Links on each product web page provided very good description and product information.

Thank you for great selection and process.

I am very happy, the lights are working great, with no issues. Thank you
Phil Z - 11/21/2017


This light was a much needed upgrade on my boat trailer to make it look more modern and not so old. It is very bright, fit right into the existing holes I used for the old lights and wiring it up could be easier! Have yet to dunk it in the water but I'm sure it will be just fine! Great Product!

These lights are awesome. They survived a year of launching the boat over the summer and Im sure theyll survive much more. Bright as well!
Marshall H - 06/08/2017


Light worked great up to about two weeks ago. Running light portion of light stopped working. Still have brake and turn single light works. A bit disappointed the full function of tail light does not work. With only a year and less than 400 miles on trailer since tail light was installed.

I recommend to first make sure the ground wire of the light is is attached to a clean metal surface on the trailer frame. A bad ground will intermittently cause one of the functions to not work properly. If the ground of the trailer does not prove to be adequate you could run it up to the ground circuit of the trailer connector.
-- Etrailer Expert Heather A - 06/24/2020


Easy to install in place of older bulb unit. Nice to not have to disconnect trailer when loading/unloading boat.


Excellent product, Easy to install and electrical hookup. It replaced a busted LED tail light. I leave my trailer lights plugged in when I launch the boat into salt water and have had no problems with the light malfunctioning. Very good light.


Taillight matched my other trailer light perfectly. Saved me from buying a whole new set. Shipping was super fast and I would suggest your company to anyone who needs trailer products. Will definitely buy from E-trailer again. Thanks

Actually the lights say they are submersible, but they actually leaked and blew out most of the led bulbs. Would not purchase again.
Robert M - 10/02/2019


I like the quality. Delivery was a bit slower than I like but it came in time. I was happy to be able to buy just one light as opposed to a whole kit. Some nice person hit my trailer broke the light and kept going. I replaced the one, unfortunately they are not a complete match and this replacement is not as bright as I like. It's going to kill me but for now I have mismatch lights with a less bright one. :(


Great upgrade for my 25 year old motorcycle trailer. Looks great, works great too.


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


I live out from a very small town in Idaho and have come to rely on buying from the internet. I've been ripped off and have lost money. Not so

The part was an exact fit, identical to the original exactly as described. It was delivered on time. Price was very right.

But what really impressed me was the way it was packaged for shipment. How often do we get stuff crushed and ruined? This light assembly was like triple wrapped and boxed for a train wreck. rocks. I won't shop elsewhere.


Just a replacement for a light that was broken during Winter storage.


The light installed easy enough. Functionally, it worked great. However, two times into the water and it failed. I had to buy another light locally for a trip. I'm disappointed since the move to more expensive LEDs was suppose to eliminate all the poor reliability of incandescent bulbs. I guess not. :-(


These lights were a great replacement for the old lights on my boat trailer. The lights bolt patterns matched up perfectly for a good fit. I couldn't be happier with the product or the customer service from etrailer. Highly recommend to anyone considering buying replacement lights.


Super tail light! Easy replacement for stock tail light. Took me about 10 minutes to install including soldering leads. I always solder because crimp on connectors always corrode on a boat trailer. Had I used crimp on connectors, would have taken 5 minutes. The LED is bright and easy to see even in bad weather.

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