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GloLight LED Trailer Tail Light - Stop,Turn,Tail - Submersible - 21 Diodes - Round - Clear Lens
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Optronics

GloLight LED Trailer Tail Light - Stop,Turn,Tail - Submersible - 21 Diodes - Round - Clear Lens

Part Number: STL101RCFB
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$23.27
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5-1/2" Diameter x 1-1/2". 3-Function, waterproof light acts as brake, tail, and turn light. GloLight lens creates a solid panel of light. Surface mount with built-in flange. Accepts industry-standard 3-prong plug. Great Prices for the best trailer lights from Optronics. GloLight LED Trailer Tail Light - Stop,Turn,Tail - Submersible - 21 Diodes - Round - Clear Lens part number STL101RCFB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL101RCFB

Highlights

  • One Light, 3 Functions: Acts as stop, turn, and tail light so you cover all rear signals in one unit.
  • Reliable In Any Weather: Sonically sealed, waterproof housing keeps water out for submersible use.
  • Distinctive Solid Glow: GloLight lens forms a smooth red ring so your trailer stands out and stays visible.
  • Fewer Replacements Needed: 21 LEDs last 50× longer than bulbs and draw less power at 12.8V.
  • Simple Plug-In Wiring: Uses standard 3-prong plug (pigtail sold separately) for quick connection.
  • Road Legal: Meets DOT, FMVSS 108, and CMVSS standards for compliant trailer lighting.

Features to know about

Distinctive, Solid Glow for Better Visibility: GloLight LED Design

This 5-1/2" round LED tail light gives your trailer a clean, standout look while keeping things fully street legal. The GloLight lens forms a smooth, solid ring of light instead of the dotted pattern of traditional LEDs. The outer band handles tail light duties, while the center red LEDs kick in for stop and turn functions. It’s bright, clear through the sealed lens, and at 12.8V it draws just 0.145 amps for the tail light and 0.375 amps for stop and turn—strong visibility without pulling heavy current.

Optronics GloLight LED Trailer Tail Light illuminated with glowing outer ring showing bright, even light pattern

Ready for Water and Rough Roads: Sonically Sealed, Submersible Build

If your trailer ever hits wet roads or the launch ramp, this light is built for it. The polycarbonate housing and acrylic lens are sonically sealed into one waterproof piece, keeping water out and protecting the 21 LEDs and circuit board from corrosion or shorts. That sealed design is also tough enough to handle vibration and shock in rough conditions without giving up on performance.

Dependable and Long-Lasting: LED Efficiency That Outlasts Bulbs

No more blown filaments or dimming bulbs. The LEDs in this GloLight last up to 50 times longer than incandescent lights, staying bright while using less power. There are no bulbs to replace, no hot spots, just efficient lighting that keeps working trip after trip. It’s a simple upgrade that adds reliability and peace of mind every time you hook up your trailer.

Straightforward Install: Surface Mount with Standard 3-Prong Plug

Mounting this light is simple thanks to its built-in flange that sits flush against a flat surface—no deep cutout required. It uses an industry-standard 3-prong plug (sold separately) for quick connection: white for ground, red for brake/turn, and black for running lights. With its compact 1-1/2" depth and smooth fit, it installs cleanly and looks sharp once mounted.

Rear view of Optronics GloLight LED Trailer Tail Light showing standard 3-prong plug connection and mounting flange

Surface-mount trailer light installed flush against trailer surface with flange mount design

Durable Circuitry for Real-World Use: Surface-Mount Technology (SMT)

Inside the housing, the LED circuit board uses surface-mount technology that’s designed to handle road shock better than older wired setups. By soldering the diodes directly to the board surface, it allows better heat control and stronger overall durability. That means consistent light output even after long miles on bumpy terrain—all backed by a lifetime LED warranty.

Specs

Quantity

  • Quantity: 1 combination tail light

Dimensions

  • Overall dimensions: 5-1/2" diameter x 1-1/2" deep
  • Light face diameter: 4"

Technical dimensions diagram of the Optronics GloLight LED Trailer Tail Light showing measurements for diameter and depth

Electrical

  • Diodes: 21
  • Power draw at 12.8 volts (Tail light): 0.145 amps
  • Power draw at 12.8 volts (Stop/turn light): 0.375 amps

Warranty

  • Lifetime warranty: on LEDs

STL101RCFB Optronics Glow Light LED Trailer Combination Tail Light - Stop,Turn,Tail - Submersible - 21 Diodes - 4" Round - Clear Lens - Standard 3-Prong Plug





Video of GloLight LED Trailer Tail Light - Stop,Turn,Tail - Submersible - 21 Diodes - Round - Clear Lens
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Detailed Breakdown of the GloLight LED Trailer Tail Light

Today we're reviewing part number STL101RCFB from Optronics. This light is in their glow light series. It's an LED stop, turn and tail light with a built in flange mount. The outer band of red LEDs here is your taillight and then the circle inside that, those LEDs will be your brake light and your turn signal. There is a clear lens housing over all of the LEDs, as you can see there. This light does use surface mount technology that protects the LEDs from moisture, shock and vibration. There is a built in polycarbonate mounting flange, makes installation very easy. Also, the lens and the housing are sealed and waterproof. This uses a standard three prong plug on the back. If you do not have a right angle three prong plug, then you will need this part which is sold separately. This is the Optronics right angle three wire pigtail plug, part number A47PB. So we're going to use that today and plug that into the back and then I can show you how this light works. We need to plug it into our power source.

Of course, you'll be using the plug on your trailer, but we have a temporary portable power source here. First, I'm going to connect the ground wire which has the ring terminal. And then I'll connect the turn and brake lights, and taillight. Okay, now we're going to turn off our overhead light and I'll turn on the power. So there is your taillight. In the center here, you have red LEDs that shine when you step on the brakes. So even though they look clear in the picture on the product page, they actually are red LEDs. Here's your turn signal. Okay, now we can turn our power source off and disconnect. This light meets all of the Department of Transportation requirements for automotive lighting. It has a four inch diameter on the light and it's one and a quarter inches deep. There is a lifetime warranty on the LEDs and a three year warranty on the housing and the wiring. There you have it for part number STL101RCFB from Optronics, the glow light LED stop, turn and taillight with a flange mount. .

Customer Satisfaction Score:

Ratings & Reviews

4.7

92 reviews
5 Stars
(78)
4 Stars
(10)
3 Stars
(1)
2 Stars
(0)
1 Star
(3)
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by:
They arrived early. Easy to install, and they look great. The same brightness level as the LED lights on the back of my car, so everyone can see the back of my trailer now. The online video review by e-trailer really helped me select these with confidence. You guys keep up the great work.
by:
Arrived when it was promised to arrive, lights look great and even better when mounted, and wiring was easy to do. I would recommend etrailer to my friends and would buy from again.
by:
Fast shipping, great product! Would recommend and also buy again!
by:
Lights work well.
by:
by:
The Optronics surface mount light (STL178RK1B) was easy to install and the 22 LED diodes provide exceptional light.
The light fits snug on the trailer bracket and the foam gasket provides extra protection.
by:
so after finding out our original lights on our 69 banner travel trailer were made of un-obtainium, I gave these a shot and they worked great. the "running light" ring kinda gives it some uniqueness that goes along great with our trailer. install was a snap too.
by:
Great lights and extremely bright definitely did not disappoint. I highly recommend these. Installed these on my pig trailer and I was blown away.
by:
Hi Carol. I’m very pleased with my new LED taillights! They’re the perfect replacements for the 1973 Field & Stream trailer I’ve been refurbishing. The screw holes matched perfectly with the originals and I love the low profile. Nice and bright even in the Arizona sunshine ??.
by:
Best Trailer upgrade for my 2013 Bass Boat , added back up lights and made a big difference in early morning tournaments on dark ramps. The leds are bright even for tail ,brake and turn signals.
May require changing some wiring for the back up lights
by:
These are great light. They look so good i put them in my restomod. I didnt like the factory light i replaced all lights with LEDs. These were a perfect fit!
by:
Lights still work great, they give a good look to the trailer.
by:
The shipping was prompt. I added these lights on the motorcycle rack that I installed on the back of our 5th wheel. The motorcycle tires kind of blocked the trailer lights. The lights look great. The brake / turn and back up lights are nice and bright. The tail lights could be a little brighter but I can add a strip light in the center if I choose.
Randy profile picture

Randy

6/4/2020

They still are working like they did when new

by:
Great addition to the rear of my Hummer H1
Rafael profile picture

Rafael

7/7/2024

These lights have worked amazingly. The LED’s have not faded out. The Lens is still as nice and clear as the day I got them one year ago. Fabulous product, I would recommend these to anyone looking to upgrade their trailer lights of for a custom job like the rear of my Hummer H1.

by:
The lights on line didn't seem to put out enough light. But I got them installed and they work great, and they are very visible. I rebuilt a 1963 Aristocrat 13 ft. it's called the "Lil Loafer" buy the factory and I wanted round lights to replicate the originals, these are round and almost the exact same size and it doesn't hurt my feelings at all that they are LED lights..
Bill profile picture

Bill

3/19/2019

I still am impressed as to how noticeable they are at night. No I never regretted purchasing those lights, easy install, work great. And the trailer originally had round tail lights. I have just purchased another set of tail lights from you, just a couple days ago. Again Oval shaped 52 diode LED. These are going on a trailer that I cant find anything about, other than it was manufactured in San Jacinto California in the 1980s. I think these new lights are going to look great on there, I think original was probably an ugly square one. The trailer is a 19 ft. , 1983 Tow Lite fifth wheel single axle. I swear it was built for off road the way it looks, and it looks stock.

by:
These work great and the Glo-light looks very nice. I installed these on my tow dolly as the original LED's went bad from shorted wiring. These fit great and are excellent quality and the E-trailer team is excellent to deal with. Never an issues!
Dale profile picture

Dale

2/27/2022

Exceptional

by:
Purchased these for a vintage camper we are rebuilding. Haven't installed them yet, but they seem like a perfect replacement for the broken wedding cake lights that were original equipment. Still need to paint and looking forward to seeing them on our cute little camper.
Mary R. profile picture

Mary R.

7/13/2020

Look and work great

by:
2000 Kawasaki Bayou
These are being installed in the trailer I pull behind my motorcycle. They broadcast a nice get your attention lighting up a brilliant turn signal light.
Squirrel profile picture

Squirrel

10/23/2022

I love the GloLight led trailer lights. They look awesome and function perfect. I bought the trailer as a gutted shell and built it from there to a better than new trailer. Every light on the trailer had to be clear lens and have a specific look before I would purchase, and I dont have a single regret with these lights.

by:
2017 Keystone Fuzion 5W Toy Hauler
If you’re going to sell lights you should also sell the wiring harness along with it I almost couldn’t use the lights but got lucky and found the wiring harness.
Mike L. profile picture
Etrailer Expert

Mike L.

10/13/2022

As mentioned in the product description above, the # AL45PWTB wiring pigtail is available separately.

by:
Put this on my boat trailer to replace the original LED lights that had leaked water inside and were failing. The lights look different and are somewhat brighter. They flush mount in a gasket. The gaskets that came with the lights didn't fit well, they were too loose, but the lights fit in the original gaskets just fine.
by:
These Oval lights work perfectly. Easy to install.
The Oval style mounts directly to the trailer and thus vibration dies not affect them.
You will have to add side marker lights as well as a separate license light.
by:
Small problem the driver side brake light only works some times, not sure all the wiring seems to be all correct. Some days It works and other days it dosen’t
They look real good on our old 1974 Shasta trailer. We are in Yellowstone National Park this Week. We are moving on to Grand Teton National Park on Saturday we will see if the driver side brake light want to work on Saturday
by:
I have used many Optronics, as I have convertyed all my trailers to LED. Brighter, faster rate of change of brightness register faster in the human brain.
This is the first halo version I have used and I like it. Very bright and eye catching running light.
Ony two critiques: 1. These are wire leads, not plugins as I was told by rep.
2. Leads are short, only about 5 inches. which means splicing, and splice will be in restricted space near the light. Won’t reach any terminal box. I wish Optronics would make them at least 12 inches long.

Overall, great light.
by:
It might be possible to give 5 stars but after purchasing all the products about a year ago, my little fiberglass trailer is not even close to being ready. All the lighting is hooked up and they all seem to work, so that's a good thing. The other products that I purchased have not been installed yet.
I would like to mention how pleased I am with e-trailer videos showing everyone how their products look and how they're used. Keep it up, I am a happy customer.

Vic
by:
The lights are exactly as described. Simple three wire electrical connectors, just as shown in the etrailer video. Perfect replacements for the broken taillights on my 1984 Burro travel trailer.
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See what our Experts say about this Optronics Trailer Lights

  • Is There a GloLight LED Trailer Tail Light with a Chrome or Stainless Steel Trim Ring
    The # A5TRSSB ring will not work with the GloLight LED Trailer Tail Light # STL101RCFB. The GloLight LED Trailer Tail Light # STL101RCFB already has a built-in ring which prevents you from using the stainless steel ring. What you would need to do is use the GloLight LED Trailer Tail Light # STL101RCB with the Stainless Steel Trim Ring for Optronics STL101-Series Trailer Tail Lights # A101TRSSB.
    view full answer...
  • How Does Optronics STL101RCFB GloLight Ground to Trailer Frame
    The # STL101RCFB Optronics GloLight would ground to the trailer frame via the 3 prong pigtail that's sold separately as # A47PB for a right angle plug or # A45PB for a straight plug. The white wire on the pigtail is the ground connection. The red wire carries the turn signal/brake lamp circuit and the black wire carries the running lamp circuit. I've linked to some product videos that you might find helpful.
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Tricia G
Written by:
Tricia G
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Amanda K
Updated by:
Amanda K

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