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GloLight Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - Red Lens - 17" Long

GloLight Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - Red Lens - 17" Long

Item # STL179RB
Our Price: $42.69
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Trailer Lights
Shipping Weight: 0.57 lbs
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17" x 1-3/8" x 1". Waterproof trailer light serves 3 functions: brake, tail, turn. GloLight lens creates a solid panel of light. Thinline light fits in tight spaces. Surface mount - hardware not included. 3-Wire pigtail. 28 Diodes. Great Prices for the best trailer lights from Optronics. GloLight Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - Red Lens - 17" Long part number STL179RB can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL179RB

  • Tail Lights
  • Rectangle
  • LED Light
  • Red
  • 17L x 1-3/8W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Non-Submersible Lights
  • Optronics

17" x 1-3/8" x 1". Waterproof trailer light serves 3 functions: brake, tail, turn. GloLight lens creates a solid panel of light. Thinline light fits in tight spaces. Surface mount - hardware not included. 3-Wire pigtail. 28 Diodes.


  • Trailer tail light serves 3 functions
    • Turn signal light
    • Tail light
    • Brake light
  • Thinline Series has a low profile so that light can fit in tight spaces
  • GloLight lens creates a solid light pattern with a smooth appearance
    • Outer band of LEDs functions as tail light
    • Center red LEDs act as turn signal and brake light
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Durable surface-mount technology (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows improved heat distribution and thinner construction
  • 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
  • Polycarbonate housing and acrylic lens
  • Mounts on surface of trailer - hardware not included
  • 3-wire pigtail
    • Black wire for power
    • Red wire for brake
    • White wire for ground
  • #10 Ring terminal on ground wire
  • Approximate wire length: 7"
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting


  • Quantity: 1 combination tail light
  • Dimensions: 17" long x 1-3/8" tall x 1" deep
  • Mounting holes: 16-1/8" apart on center
  • Diodes: 28
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.634 amps
    • Tail light: 0.445 amps
  • Lifetime LED warranty

Optronics STL179RB GloLight Thinline Combination Trailer Tail Light Dimensional Diagram

Innovative GloLight Design

This red LED light serves as a trailer tail light with stop, tail, and turn functions. The light gives your truck or trailer a distinctive look that's completely street legal. This Optronics GloLight has a unique solid light pattern when lit, so your lights stand out from the rest. Optronics GloLights are a great way to add both style and value to your truck or trailer.

Sonically 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 housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.

LEDs vs. Incandescent Lights

The long-lasting, cool-burning LEDs make this light the perfect replacement for incandescent vehicle and trailer lighting. LED lights are more efficient, use less power, and last much longer than incandescent lights.

Surface-Mount Light

Surface mount light

Surface-mount lights install flat against the surface of the trailer, so a hole does not need to be cut into the trailer for the light. This type of light is installed using a flange or bracket that has mounting holes. And mounting hardware is used to secure the light to the trailer.

STL179RB Optronics Thin Line Glo Light LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 17" Long - 28 Diodes - Red Lens

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Customer Satisfaction Score:

Customer Reviews

GloLight Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - Red Lens - 17" Long - STL179RB

Average Customer Rating:  4.7 out of 5 stars   (182 Customer Reviews)

17" x 1-3/8" x 1". Waterproof trailer light serves 3 functions: brake, tail, turn. GloLight lens creates a solid panel of light. Thinline light fits in tight spaces. Surface mount - hardware not included. 3-Wire pigtail. 28 Diodes.


By far, the brightest combination taillights out there. Complete night and day difference from the original ones on my trailer. Total illumination of the entire lens, super bright!!


One of my old LED tail lights had a few diodes fail so I started the hunt for a replacement. I wanted something with a fairly bright output so people will know that I am there. I spent quite a bit of time searching the internet and reading reviews before arriving upon these. I was a little skeptical about the "glow" but I LOVE them. They more than exceeded my expectations. There is a version of these tail lights that have reverse lights and I almost got that for those dark nights when I put the trailer away. These put off enough general light it almost isn't needed, though it would still be nice so others would know if I was backing. I took the opportunity to replace all the trailer lights and bought the GloLight amber and red side markers as well. I am out in the country so at night there is almost no light pollution. It is nice to be able to see exactly where my trailer is at all times. I would buy these all day long. I actually own a second enclosed trailer and am considering putting these on even though those haven't failed yet. I have also purchased from etrailer in the past and always had a great experience and this was no different.


The only other way to get a drivers attention would be to slap them up side the head!
Great looking, eye catching, extremely bright especially at night.
The only problem I had was one of the lights wasn’t water tight. After a rain storm, I found about 1/4” of water at the bottom of one. This was the same problem I had with a previous led light. Evidently the hermetically sealed light wasn’t hermetically sealed. I alleviated this problem by drilling a small (.016”) weep hole in the bottom.
I’ve taken a few pictures to show the quality and brightness of these lights.
Lights off, lights on during daylight and at dusk. The picture of the lights at dusk is not the intensity of brake lights but just taillights.


Always a pleasure to deal with E trailer everyone there is very nice very professional have used them several times in the past will continue to do so.


Great service like always from etrailer. The lights were exactly as described on the site. I used them as replacement lights on a Highway Products headache rack on my '12 F-450 pickup.


Replaced lights on my 5 yr old trailer for third time with these, really well made. Super bright also !!


Fast and east

Brian V.


Still working as they should


Great product. The video provided on the etrailer website helped out a lot. Light is nice and bright and a good replacement on my trailer.


I ordered one the wrong lens cover, can I send it back?

Etrailer Expert

Jenny N.


Yes, absolutely you can since it is within 60 days of your order. Customer Service will be in touch.


The etrailer website is well-organized and informative, the company communicates very well, and the products I bought were exactly as described. They arrived on time, nicely-packed, and plugged into my project immediately. The LED lights are going on my rear-mounted bike rack. They're bright and full-featured (running, brake, turn) and waterproof.

This company is very professional in its business matters. I'll be back when I need their products. There should be a sixth star for top-performing companies like

I'm very pleased. Thank you, etrailer.


Nicely made LED brake/turn & tail light. Sealed from moisture. Don't forget to order the silver base to mount the light. I was able to trim the base on each end so that the LED piece fit on a slightly curved surface. Without the base that would not have been possible. I mounted these lights on the rear of my truck topper for towing with my MH.



The LED tail lights have been working great. Drove to Alaska and back from Florida and they worked just fine.


These are a very high-quality...
love the glow they give off, unlike regular LEDs these are intense but not overwhelming and they really make my trailer visible day or night in just the tail light mode which was the biggest worry I had.
But when the brakes are applied it's so bright that there's no doubt I'll be stopping and nobody will be confused of that... I'm going to get more of these for the other trailers I have, they make me safer at night by far. And they are bright enough I really don't need backup lights, the glow is amazing...


These are great replacement tail lights! I only wish there was a slip of paper included stating which wire controlled which part of the fixture. Aside from making sure they worked, I didn't check it all before sealing everything. I would've flipped the wires, but that's just a personal preference.


Good for replacement base of initial install of the glo marker lights. Mine have been on for a year - no problems. I also have used the lights with base included.


I appreciate your help!


I've been very happy with the products from eTrailer, this is no exception. That being said, the similar LED lite that I'd purchased a few months ago has a better distribution of the lights over the full extent of the surface. This one is just concentrated in the middle. I was sorry to see the other brand go.


excellent brightness, but be careful not to overtighten your mounting screws. I broke one of the mount's plastic by over tightening.


This is the second purchase from etrailer. I'm glad my wife found this web site.
I've been very happy. My last purchase was a light for my boat trailer. Thank you


Came as expected and easy to install with some solder and shrink tube. They look and Work great!


Light work great. Look nice and are bright. is great to work with and have great products.




I got these to replace similar lights that came on a trailer in 2007 and were not working as they were supposed to anymore.


Lights were exactly as described. Very bright and I am satisfied with my purchase. Would’ve hesitate in ordering them again.


I haven't mounted them yet but when I do I know they will be perfect. They were packaged well and arrived a day early.


Works as described. Nice and bright.

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Info for this part was:

Employee Jeff D
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Employee Tricia G
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Employee Jameson C
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