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Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens

Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens

Item # STL79RB
Our Price: $23.66
Trailer Lights
Shipping Weight: 0.45 lbs
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17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design. Great Prices for the best trailer lights from Optronics. Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens part number STL79RB can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (493)
  • Q & A (0)
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Optronics Trailer Lights - STL79RB

  • Tail Lights
  • Oval
  • LED Light
  • Red
  • 17L x 1-1/2W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design.


  • Low-profile LED trailer light serves 3 functions:
    • Stop
    • Turn
    • Tail
  • Sonically sealed, polycarbonate housing and lens are waterproof
  • Durable surface-mount technolgy (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 lens over white LEDs
  • Surface mount - hardware not included
  • 3-Wire design


  • Overall dimensions: 17" long x 1-3/8" wide x 1" deep
  • Distance between mounting holes (center on center): 16-1/8"
  • Diodes: 11
  • Power draw at 12.8V:
    • Stop/turn: 0.350 amps
    • Tail: 0.022 amps
  • Quantity: 1 light
  • Lifetime warranty on LEDs

Optronics STL79 Series Streamline Sealed LED Trailer 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.

STL79RB Optronics Streamline LED Combination Trailer Tail Light - Submersible - Stop, Tail, Turn - 11 Diodes - Red Lens - Quantity 1

Alternate part number: STL-79RB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens - STL79RB

Average Customer Rating:  4.8 out of 5 stars   (493 Customer Reviews)

17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design.


Great purchase experience. 11-LED Optronics Trailer Light STL79RB was delivered as promised and fits perfectly. Recommend this item and will return for my future lighting needs.



Update: Have trailered my boat 3-4 times per month in the last year and these lights are still burning bright! Great, reliable product.


Brake light has rubs and scratches on both bottom and top sides.
Disappointed in packaging, a thin clear plastic sheath inside a thin plastic mailing envelope. No protection at all during shipping.


The LED taillights worked out great with my trailer rebuild. They will be protected at all times because I was able to have them tucked out of harms way. They are not low where backing up would endanger them and not protruding from the sides to be in the way either.

But they are still highly visible at all times from the side or rear. THANKS for a great product!



The tail lights were a great finishing touch to the rebuild of my utility trailer. The taillights are so visible and stay out of the way. They dont have those tender filaments in the old bulbs that a bouncing trailers play havoc with. Not to mention rusty bulb sockets that made the bulbs dimmer!


I really like them for my teardrop trailer we are building. It was an excellent choice. Thank you


The clear LED tailight strips that came with my trailer started filling with moisture and were only partially working. Most trailer part places only had the 15" lights. You were the only ones I found with the 17" lights and a diagram showing the mounting hole centers and dimensions. The product pictures were great for checking the wiring. Quick shipping and the tracking link was great. A few simple tools & some butt connectors and I was done. Finished the job with clear caulking around the lights.I like the red strip over the clear stock one and the lights are easy to see even in full sun.


Easy to hook up and work perfect very b right.


Looked at several lights on amazon. Flat on the back makes for a difficult connection. Found these on etrailer and worked great. Their is a good space behind the light to deal with the ground and wires. Excellent buy! Very happy with purchase. Shipping was fast and great follow up on purchase. Will buy again!


I installed this light as a third brake light at the top of my camper. LEDs, no maintenance, works great. A big improvement in safety. Order service was prompt and accurate. Good job.


I used this as a brake light and it has handled offroad abuse and has continued to work without any segments burning out. It was wired to provide the brightest output.


Paid for 2 day shipping. It ended up taking about as long as normal ground shipping. This was my first purchase through etrailer. I will stick to RealTruck going forward


Worked great, I used them on the sides of my headache rack.

Steve S.


There still working perfectly


I like a lot of folks did my research, I have a specific requirement for this cargo carrier, I need it to hold a dock box made by lifetime. And this carrier works perfectly. It was very easy to assemble. And very sturdy. I enclosed a picture of the dock box installed. I had to do some modifications to the dock box, but it worked out beautifully. I highly recommend this cargo carrier for the price quality and value.


Nicely done Optronics and eTrailer. Solid and simple snazzy, I need all the snazzy I can get. Great value.


Wanted to change my back lights on my toyhauler so bought these and they look and work great


Replaced the crappy original stick-out basic lights with these LED ones under the lip of the deck. Fit great, work great. Good product, as expected from etrailer.


These were to replace some on the back of my motorhome that I installed about 4 years ago. They corroded with Michigan’s winters and salted roads but looked so good I replaced them with fresh ones.


Rebuilt my boat trailer, have had them underwater several times and working
Perfect. Great easy product!


We installed two lights on a ramp for the rear of our car. They were so simple to install and they are very bright. Great product!


The led lights were very easy to install and they look great. Thanks


Beautifully designed, looks like two light bar, very bright and effective. I recommend this product.


Easy installation, worked as advertised. Looks good.


Not real happy at this point. Spent most of the day filing down the back, ( center) of the light for mounting on a flat surface. Both rails on the back of the light created a bow when screwed onto a flat surface. If I would have just attached it to the flat surface, it would have put the circuit board in a bind and I didn't think that would be a good idea knowing the beating they would take if mounted them like that on the back of my flatbed trailer. With one end screwed down, the other end was approximately 1/8 of an inch raised above the mounting rail. If mounted like that, they would not have lasted 3 weeks before cracking the circuit board. as received, the small rails on the back did not provide a flat surface for mounting. But they did when I got done filing them. If anybody is going to screw an object 17" long onto a flat surface, ( unless it is made out of rubber) it better be flat also. On top of that, the wires could stand to be a bit longer.

Dave G.


lights working great. I could not have made a better decision on what and who in order to obtain my desired results.


ordered for use on trailer with rear ramp that when closed (verticle) stands approx. 6'. Lights on the trailer are low to ground approx. 1'- 18". My concern was visibility of trailer brakes. Your item was flat backed long and narrow ideal for mounting at top part of trailer ramp mentioned earlier. Much more visible approx 5' high and of course led lights, much brighter. Feel more secure towing with addition of your item. Easy to install, quality, and price reasonable.

Bruce R.


Same opinion as right after installed, still pleased!


This tail light will be used on a motorcycle and replace standard bulb trailer lights that are failing. This light happens to fit perfectly on the bar that formally held the old lights. The brightness and use as running as well as brake lights enhances the visibility of the bike even during daylight.



The trailer lights are still performing like new. Im pleased to find a product that performs so well, is easy to install, and is and will continue to protect my tail!


no instructions, no diagram. useless ju nk.

Etrailer Expert

Jenny N.


ou mentioned that there were no instructions and no diagrams. We do have an installation video where the light was installed. Please see the link below.

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