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GLOLight LED Combination Trailer Tail Light - 7 Function - Submersible - 34 Diodes - Driver Side

GLOLight LED Combination Trailer Tail Light - 7 Function - Submersible - 34 Diodes - Driver Side

Item # STL117RB
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Optronics Trailer Lights - STL117RB
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In Use/Installed

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8" x 2-15/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. GloLight lens creates a solid light pattern with a smooth appearance. Stud mount. 3-Wire. Lowest Prices for the best trailer lights from Optronics. GLOLight LED Combination Trailer Tail Light - 7 Function - Submersible - 34 Diodes - Driver Side part number STL117RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (758)
  • Q & A (5)
  • Videos (3)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL117RB

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

8" x 2-15/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. GloLight lens creates a solid light pattern with a smooth appearance. Stud mount. 3-Wire.


  • Rectangular trailer tail light serves 7 functions
    • Stop light, tail light, turn signal light, side marker light, side reflex reflector, rear reflex reflector, and license plate light
  • GloLight lens creates a solid light pattern with a smooth appearance
    • Outer bands of LEDs function as tail light
    • Center LEDs act as turn and brake signal
  • Sealed, waterproof construction is submersible
    • Light is designed specifically for boat trailers
  • 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
  • Durable plastic housing
  • Red lens over white LEDs
  • Mounts on surface of trailer with included studs
  • 3-Wire pigtail
    • White is for ground
    • Brown is for tail lights
    • Yellow is for stop and turn
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting
  • P2 rated


  • Configuration: driver's side (left-hand side)
    • Passenger's-side light (STL116RB) sold separately
  • Dimensions: 8" long x 2-15/16" tall x 2-5/8" deep
  • Distance between mounting bolts (center on center): 2"
  • Diodes: 34
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.252 amps
    • Tail light: 0.135 amps
  • Quantity: 1
  • Lifetime warranty on LEDs

Optronics STL117 Series GloLight LED Low Profile Combination 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.

P2-Rated Lights

Diagram of light spread for P2 rated light

A P2-rated light produces a 45-degree angle of light to either side of its centerline for a total of 90 degrees of coverage. This beam pattern can be seen straight on, but it cannot be seen clearly from the side. So this type of light can be used as either a side marker light or a clearance light, but it cannot function as both. If you need both functions, then you must install 2 separate lights on your trailer - one as a front or rear clearance light and one as a side marker light.

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.

STL117RB Optronics Glo Light Combination LED Boat Trailer Tailight - Left Side - Red Lens

California residents: click here

Video of GLOLight LED Combination Trailer Tail Light - 7 Function - Submersible - 34 Diodes - Driver Side

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

Video Transcript for Optronics GloLight Trailer Lights Manufacturer Review

Brett Johnson: (silence)The Glolight is the stunning combination of premier lighting technology, meeting world-class style and capabilities. The introduction of the Glolight series represents the first truly different approach in years to the visual presentation of stop-tail-turn lamps.Most LED lamps have hotspots or patterns of bright light. Glolight lamps are visually distinctive from other LED lamps, because their lenses diffuse the light, giving them a smooth, bright, glowing appearance.The Glolight optical technology is so different, it's patentable. And Optronics has 35 new products with Glolight technology in its pipeline, right now. Mudd: Lighting is one of the most visibly predominant features on any vehicle, and this is a completely different looking yet highly effective light. We're focused on integrating the latest technology into our manufacturing process, and these new lights clearly represent the innovative partnership between Vanguard and Optronics.

Innovation is important to Vanguard, our customers, and our industry. Robert: Glolight technology looks different because it is different. Different in its optical approach and different all the way down to the circuit boards.We designed and manufactured all of our lamps using the most advanced engineering techniques, and test them in our own world-class, state-of-the-art optical testing facility. Lamps are engineered to resist everything, from shock, to dust, to high-velocity water spray. We're committed to designing and manufacturing erosion-resistant LED lighting products.

And Glolight lamps are produced using solid state, surface-mount device, or SMD, technology.Most LED lamps sold in the heavy duty market today, use what is typically referred to as "through hole" construction. Optronics LEDs are mounted directly to the surface of the circuit board, eliminating exposure to connecting points. LED lamps with SMD technology, like Optronics' new Glolight, are so robust that they can continue to function even if their circuit board is completely submerged in water. The unique Glolight lenses and housings are made of tough polycarbonate material that is sonically welded to create an impermeable seal. Glolight lamps meet all FMVSS 108 and SAE photometric requirements for visibility and safety.

And our lamps are tested at a certified, independent laboratory.I guess it's redundant to say this, but our lamps come with a lifetime warranty. Roush: There's nothing out there that's as eye-catching and effective as these Glolight lamps. Vanguard is always drawn to component supplier products that contribute to our customers' efforts to operate more effectively and safely. Glolight lamps just look different and more noticeable. And that means better safety.

Brett Johnson: With world-class manufacturing facilities, harness making capabilities, and a global market presence, Optronics is now changing the competitive landscape in HD lighting. We always have access to a lighting manufacturer with global sophistication, fleets are enjoying increased product availability, and everyone is befitting from new, innovative technology and the industry's most competitive pricing structure. With Glolight, Optronics is sending a signal that things have changed in the HD lighting industry.

Customer Reviews

GLOLight LED Combination Trailer Tail Light - 7 Function - Submersible - 34 Diodes - Driver Side - STL117RB

Average Customer Rating:  4.9 out of 5 stars   (757 Customer Reviews)

8" x 2-15/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, rear reflex reflector, and license plate light. GloLight lens creates a solid light pattern with a smooth appearance. Stud mount. 3-Wire.

- STL117RB


- STL117RB

Previous review was subject to troubleshooting why the lights weren't working. Problem was in the plug between the truck and the boat. The lights are fine and I'm upgrading my initial review from good to excellent. I really like the overall look and the bright light the LEDs provide. 815694

- STL117RB

Great lights. Fits my Ranger Trail great and light up very bright ! 808330

- STL117RB

I replaced my broken trailer light using etrailer.com service was great and the replacement product high quality. 802959

- STL117RB

Good product. To improve, I'd like a hard foam on the back where the bolts fit to give a pad between the light and mounting location. Also, it's too expensive. I paid $27 thinking it was for the driver's side and passenger's side (description was correct, I just didn't read it all). When the product came in I had to order the other side. If I did it all over, I'd get both sides elsewhere for the same price. 672316

- STL117RB

These are some very nice lights. Running lights are very sharp looking. Work perfect on a boat trailer. I never unplug them before launching and they continue to work perfectly. 633900

- STL117RB

Awesome lights, Only had for one year but use the trailer regularly. Very happy with the visibility and low profile works great on my trailer. 561346

- STL117RB

Terrific product.......if you are tired of dim incandescent taillights this is the answer. Very, very bright in the full sunlight...even brighter for turn & brake function. There is no excuse for anyone to confuse your intentions of braking, turning or emergency situations. Simple two wire per side butt connection. 544300

- STL117RB

BRIGHT 508044

- STL117RB

Great products and pricing with exceptional customer service! The product fit perfectly on my trailer. 489216

- STL117RB

Looks great...and performs great. Would definitely recommend and purchase again. 438419

- STL117RB

I installed the lights at full sun. And they are still bright. 405879

- STL117RB

Absolutely love these lights. They are nice and bright and have a great look to them. They can be seen well in the bright daylight. Install was easy. As noted by other reviewers I was quite careful when tightening the nuts as the only thing that prevents the bolts from turning is plastic. Couldn't be happier! 396119

- STL117RB

These lights are bright and are very visible ... love the new look on my boat trailer!! 315901

These tail lights are nothing short of amazing!!! They are bright, and have worked flawlessly on my boat trailer getting submerged every weekend.
Cliff C - 11/11/2017


- STL117RB

Very good product, I will recommend this light to anyone who wants to upgrade a boat trailer. 300769

- STL117RB

Products are as described. Fast deliver y. 279581

- STL117RB

Amazing difference over stock 1157 bulbs-way brighter. 275158

- STL117RB

Extremely bright little trailer light that has so far performed flawlessly. 221855

The lights are still working great. I like them so much that Ill probably end up buying another set of them for my other boats trailer sometime in the not too distant future.
Jarrett K - 08/31/2016


- STL117RB

Great set of lights, lots of complements...!! very happy and satisfied with this product...!! 100% recommended 187790

It is working excellent, no flickering at all. been expose to the whether and still looks new...!!Once again very satisfy with your product...!!Thank you Best regards...Braule
Braüle76 - 04/24/2016


- STL117RB

Because one my boat trailer stop/tail lights was damaged I decide to upgrade both of them from incandescent to LED. What a difference; downright dazzling! The change out was as simple as could be given that the format and wiring of the lens/lamp housing was virtually identical between old and new. So much so, in fact, that I kept the undamaged old lens and housing to use in case of an incident enroute. NOTE: I didn't use the crimped-on eye connector to ground the assembly to the mounting bolt of the housing as provided. I cut the eye off and wired directly to the coupler ground having just added a "car end" 6-pin to the boat trailer. Yes, I hate trailer lights that much! 158862

- STL111RB

Review from a similar GloLight in Trailer Lights

Nice light, I like the halo running light because it stands out a little. I did notice the price on these went up significantly (4 bucks) so not sure why that was 649627

- STL111RB

Review from a similar GloLight in Trailer Lights

These lights are pretty impressive for trailer lights. I would be lying if I said I didn't consider putting a pair of them on my truck. The appearance is excellent, function is excellent, and I am overall very pleased with these lights. I installed them on my flatbed and livestock trailers - both look phenomenal but the vertical mount on the livestock trailer is most impressive. Installation was a snap with the new rubber bushings (purchased from etrailer for less than $1/each). You just can't go wrong for this price. I haven't seen STT lights I have liked as well as these. As far as the shipping goes, I live in West Central Illinois and these items arrived in less than 24 hours with the standard shipping. You cannot, and I mean cannot, beat etrailer for customer-centered service. OUTSTANDING!!! 102044

- BUL111CB

Review from a similar GloLight in Trailer Lights

Couldn't find anything like this anywhere. This reverse light far outshines other 6" oval led types I've had and seen. Was rear ended recently, and the old ones of this same style were knocked out and run over. Fits my 2012 ranch hand sport series bumper. 490512

- STL190RB

Review from a similar GloLight in Trailer Lights

Had originally ordered a different unit, but Lori called to say they would be on backorder from the maker. She suggested these to replace units that on our 81 Burro rebuild. Great service! 588149

- BUL111CB

Review from a similar GloLight in Trailer Lights

Light requires the use of a grommet to fix it into a recess. A video of how the grommet is installed & works with the light would be helpful. I spend a lot of time getting the grommet with the light to fit nicely note the hole needs to be a little bit larger than the light which is dimensioned in its description. Looks and fits great once installed properly. Nice products! 511515

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Info for this part was:

Written by:
Tricia G
Video by:
Joshua S
Video by:
Kathleen M
Video Edited:
Jacob T
Video Edited:
Chris R
Installed by:
Cole B
Installed by:
Ryan G
Updated by:
Sarah W
Updated by:
Brian T

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