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LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - 17 Diodes - Passenger

LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - 17 Diodes - Passenger

Item # STL36RB
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Shipping Weight: 0.88 lbs
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7-7/8" x 3-1/4". 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 with included hardware. 3-Wire pigtail. PC rated. Lowest Prices for the best trailer lights from Optronics. LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - 17 Diodes - Passenger part number STL36RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (390)
  • Q & A (30)
  • Videos (1)
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  • Why etrailer?

Optronics Trailer Lights - STL36RB

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

7-7/8" x 3-1/4". 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 with included hardware. 3-Wire pigtail. PC rated.


  • Rectangular trailer tail light provides stop, turn, and tail light functions
    • Built-in side marker and rear clearance light with reflex reflectors
  • 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
    • White wire is for ground
    • Brown wire is for the tail lights
    • Green wire is for the stop and turn lights
  • PC rated light produces a 180-degree beam pattern
  • DOT compliant


  • Configuration: passenger's side (right-hand side)
    • Driver side: STL37RB (sold separately)
  • Dimensions: 7-7/8" long x 3-1/4" tall x 2-7/8" deep
  • Diodes: 17
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.181 amps
    • Side marker light: 0.047 amps
  • Lifetime warranty on LEDs

Optronics STL36RB LED Combination Tail 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.

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.

STL36RB Optronics Aero Pro Combination LED Taillight for Marine Trailers More Than 80" Wide - Red Lens - Right Side

Alternate part number: STL-36RB

California residents: click here

Video of LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - 17 Diodes - Passenger

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

Video Transcript for Review of Optronics Trailer Lights - Multi-function LED Tail Light - STL36RB

Ellen: Hey everyone. I'm Ellen here at etrailer.com, and today, we're taking a quick look at the LED tail light for your trailers that are going to be over 80" wide.This is going to give you seven functions in one light, so we'll have our reflectors on the face here. That's going to be our rear reflector. We'll also have side reflectors. Turn that to the side, you can see, it reflects the light, catches the light. If anybody happens to see your trailer in the dark, it'll still be illuminated even when the lights aren't on, so it makes us more visible.And then we'll also have our actual lighting functions.

So I'm going to hook this up to power and ground so we can take a look at those functions. We'll have three wires to connect. Our white wire goes to ground, that ring terminal on there. Our brown wire's going to go to 12 volt power, a constant power. And then our green wire is going to be our turn signal and our stop.I'll turn on my power source and we can see our light turns on.

So this is going to be our rear light and our side marker light, so that's going to be two much more functions, so we're up to four now. And then it's also, whoop, connection just went out here. This isn't the light, that's my box is a little funky. There, our light's back on. And then if we hit the brakes, that's going to be our fifth function, gives us our brake light, and our sixth will be that turn signal for us as well.So it's also going to be our side marker light.

If you look at the side, still gives us that side light illuminated over there. So gives us all the functions we need in one single light. This is for the passenger side. If you want the driver's side, it is available here at etrailer.com using part number STL37RB and it's going to have all those same functions with an additional light at the bottom to illuminate your license plate. So that's going to have eight functions instead of the seven.But as far as this light here, it is, again, an LED light, so it's going to be very efficient, long-lasting.

There's no brittle filaments that can burst on you and need to be replaced. If anything should happen, you can replace this cover by removing the four screws around the corners here. This cover can be replaced if that happens to get damaged, cracked, or anything like that.Comes with the mounting hardware. Those carriage bolts are going to slide into these slots. We'll have three slots available so you can get the right width for your attachment points. I'll give you some measurements on the distance between those. Again, that is going to be two carriage bolts, two flat washers, and then two nuts to secure that in place.The housing is made out of a durable plastic. This is going to be a red lens over white LEDs and it is going to be PC rated, which means that it can offer that clearance and side marker function. Basically just gives you 180 degrees of visible light going around there, so even if you're at the back or at the side, it's still going to give you that lighting function that you need to be DOT compliant.Now, as far as the size of our light, overall it's about 7-7/8" long and then it's going to be 3-1/4" tall and about 2-7/8" deep. The wiring coming off the back, it's going to be about 15" of wire to work with there. It's longer than my ruler by about 2", so say roughly 15", a decent amount of wire to work. Of course, you will probably have to add a little bit more wire onto there to get it connected to the rest of your system. Our mounting holes at the back, between the farthest two they're going to be 4" apart center to center. Between the next two it's going to be 2" apart, center to center, and same thing for these, so each of them is 2" apart for those slots so you can get those dialed in.This does have a total of 17 diodes. Our power draw at 12.8 volts is going to be 0.181 amps for our stop and turn signal, and for our side marker light, it's going to be 0.047 amps. And there is a lifetime warranty on those LEDs from Optronics.That's pretty much going to do it for our look at the LED tail light for your trailers over 80" wide. Again, if you need the driver's side, that's going to be STL37RB. I'd highly recommend you check that out since you will need the pair of them to go on your trailer, but that's going to do it for our look, and thanks for watching.

Customer Reviews

LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - 17 Diodes - Passenger - STL36RB

Average Customer Rating:  4.9 out of 5 stars   (390 Customer Reviews)

7-7/8" x 3-1/4". 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 with included hardware. 3-Wire pigtail. PC rated.


trailer light works great. Thanks for offering top quality products 568338


These lights are fantastic, they are brighter than the standard boat trailer lights, able see license light reflection in sun light, and finally they have supplied S.S. nuts and bolts. No rust!! I would have rated these 5 star if the nuts and bolts would have been standard size instead of metric. Just took extra time to find mm socket to fit!! 612690


Both products greatly increased the brightness of my taillights which is what I wanted. They have worked since then without fail. The postal service originally lost my order and etrailer didn't hesitate to get another one sent out at no charge. Awesome customer service! 736123


Easy order and perfect match to my trai ler. 734859


great company to deal with.fast shipping and great products. 725839


Still working and bright 696705


before and after[old and new]...all is good... 683867


Lights arrived quickly and work great 671963


Lights get submerged in the lake at least twice a week and never a problem. 662901


Before purchasing these lights for my boat trailer, I had gone through two sets of lights with incandescent bulbs trying to find lights that wouldn't fill with water and cause damage to the bulbs and sockets. After a year of use, these lights still never leak when the trailer is put in the water. And the brightness of the LEDs is a huge improvement over the incandescents they replaced. 654500


Exactly what I wanted and fast shipping . 651295


Optronics LED trailer lights are really very good. They work well, are very bright, and hold up well, except when you back your trailer into a tree. 642419


very bright perfect for my boat trailer 614401


Everything about the transaction went smoothly. Customer service helped a lot. I was trying to match this light with an existing light. Match looks perfect. Have not installed yet. Waiting for a break in the weather. I don't anticipate any issues. 613467


Great product. I replaced my old trailer lights on my 2002 Ranger 520 and these lights fit perfectly. Fast shipping and a fair price. Very Pleased. 581151


It was an exact replacement part. Good product and excellant service. Thanks 579585


Delivered timely as expected, perfect fit and exact replacement for my Nitro Z8 boat trailer. Wires are exact same color match, all you have to do is remove the broken tail light assembly by removing 2 bolts. Cut to length, strip and attach to existing colored wires, Works perfectly. I recommend using Marine grade heat shrink too. If I break another one I will definitely purchase replacement here. Thanks again. 571723


The Over 80" Areo Pro Trailer light I received a year ago has worked excellent. I have had no issues with this product. Much better light than original equipment. If you are looking to buy new lights I suggest you look at this light very strongly. 550999


Works exactly as described. Easy to wire and attach to trailer. No issues whatsoever and delivery was quick. 518404


Everything is looks fine thanks 515121


Exactly what I needed and ordered 479828


Easy to insall and see, looks good and works well. 464339


Bought a brand new trailer and from the get go some of the regular lights were intermittent. Finally had enough and ordered LED's to replace them all; have not had a single light issue over a year later. All were direct drop in replacements, fit and look great. Thanks etrailer.com! 461012


In use over a year now in my boat trailer with 40 trips to the lake... no issues. 459232


Good product. Good price. Quick shippin g. 446509

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Info for this part was:

Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Video by:
Kathleen M
Updated by:
Laura H
Updated by:
Brian T
Installed by:
Cole B
Installed by:
Robert C
Video Edited:
Chris R

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