GloLight Halo LED Trailer Light w/ Flange - Brake, Turn, Tail - Submersible - Round - Red

Part Number: STL101RFMB

412 Reviews | 6 Questions

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$30.61

Retail:$48.81

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Product Images

optronics trailer lights stop tail turn 5-1/2 inch diameter stl101rfmb

optronics trailer lights tail submersible stl101rfmb

optronics trailer lights stop tail turn submersible

optronics trailer lights stop tail turn submersible stl101rfmb

optronics trailer lights submersible 5-1/2 inch diameter stl101rfmb

optronics trailer lights tail 5-1/2 inch diameter glolight halo led light w/ flange - brake turn submersible round red

optronics trailer lights tail 5-1/2 inch diameter

optronics trailer lights tail stop turn glolight halo led light w/ flange - brake submersible round red

optronics trailer lights tail submersible glolight halo led light w/ flange - brake turn round red

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GloLight Halo LED Trailer Light w/ Flange - Brake, Turn, Tail - Submersible - Round - Red customer photo

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GloLight LED Trailer Tail Light Spec Review

Optronics LED Trailer Lights | Straight from the Manufacturer

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This red GloLight is bright, easy to see, waterproof, and just looks cool. The outer ring is a tail light and the center is a turn signal and brake light. Mounts with built-in flange. Designed with weathertight connector. Great Prices for the best trailer lights from Optronics. GloLight Halo LED Trailer Light w/ Flange - Brake, Turn, Tail - Submersible - Round - Red part number STL101RFMB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Optronics Trailer Lights - STL101RFMB

Features:

Halo tail light is bright and easy to see, day or night
- Outer ring glows for tail light
- Center flashes for turn signal and brightens for brake light
Waterproof - great for boat trailers
White LEDs with red lens
- More efficient and durable than incandescent bulbs
Polycarbonate housing and acrylic lens
Recessed mount with built-in flange
- Hardware not included
Weatherproof connector
- Requires adapter (AL45PWTB - sold separately) to work with 3-prong plugs
DOT compliant
- Meets FMVSS 108 and CMVSS requirements

Specs:

Overall dimensions: 5-1/2" diameter x 1-1/2" thick
- Light face diameter: 4-5/16"
- Requires 4-1/2" cutout
Diodes: 21
Power draw at 12.8 volts:
- Tail light: 0.145 amps
- Stop/turn light: 0.375 amps
Lifetime warranty on LEDs

Optronics STL101RFMB GloLight Red LED Trailer Tail Light Dimensional Diagram

Weathertight Wiring Connection

Back of Optronics Glow light showing weatherproof 3-prong plug mount

This GloLight has a weathertight plug that's designed to block out moisture. It needs a particular adapter (AL45PWTB - sold separately) to plug into a 3-plug pigtail and connect to your vehicle or trailer. Pick up a right-angle pigtail (A47PB - sold separately) or a straight pigtail (A45PB - sold separately) if you don't have one already.

STL101RFMB Optronics Glow Light LED Trailer Combination Tail Light - Stop,Turn,Tail - Waterproof - 21 Diodes - 4" Round - Red Lens - Weatherproof 3-Prong Plug

California residents: click here

Customer Satisfaction Score:

95% were satisfied with this product

5% of customers were not satisfied

Wrong item was ordered

5% of customers were not satisfied

Wrong item was ordered

4.8

410 reviews

5 Stars		(366)
4 Stars		(29)
3 Stars		(6)
2 Stars		(3)
1 Star		(6)

by: Raymond12/30/2025

Options are always the best.

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410

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See what our Experts say about this Optronics Trailer Lights

Do you have a question about this Trailer Light?

How to Determine Replacement Tail Light for 2004 Ranger Boat Trailer
From what I could find it looks like a 2004 Ranger boat trailer uses round tail lights so something like the Optronics GloLight LED Trailer Tail Light # STL101RFMB could potentially work. Since I don't have specs on your tail lights though I'll need you to confirm the dimensions of your trailer tail lights prior to getting a replacement. The light I mentioned above has an overall diameter of 5-1/2" and the light itself has a 4-5/16" diameter. If you have something different please let...
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What are the Dimensions of the Different Steps on the Back of Optronics Trailer GloLight STL101RFMB
I went out to the warehouse and pulled Optronics trailer light # STL101RFMB to measure it for you. That bottom tier is actually closer to 4-7/16 inches (4.44) and it is 3/16 inches tall. The next one up is 3.95 inches in diameter, which might as well be 4 inches, and it is 3/16 inches tall. The last tier is 3.79 inches (3-3/4) in diameter and 3/8 inches tall. The plug at the top is 1 inch wide, 1/2 inch front to back, and 7/16 inches tall.
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Which Pigtail Is Correct For The Optronics GloLight Taillight STL101RFMB?
The Weathertight connection on the back of the GloLight LED Trailer Tail Light # STL101RFMB is a newer design from Optronics, so the Three-Wire Straight Pigtail # AL45PWTB is an adapter for the older 3 prong design that is still pretty commonly used on older lights and other manufacturers (see part # A45PB). With that said, as you do not have a need for this adapter, you will indeed need the 3-Wire Pigtail - Weathertight Plug # A45PMB.
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Diameter of Optronics # STL101RFMB GLOLight LED Stop/Turn/Taillight
The 4 inch diameter listed is for the lens, while the entire diameter of the unit, including the mounting flange is 5-1/2 inches. The lamp is designed to fit in a 4-1/2 inch diameter hole. If installed in a 4 inch hole, the mounting flange would not be flush against the mounting surface. If you could enlarge the hole by 1/2 an inch, the lamp would work great for you. All of the flush or grommet mounted 4 inch trailer lights we offer require a 4-1/2 inch hole.
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Availability of a Flush Mounted 2-1/2 inch Diameter GLO Light Led Trailer Light
The Optronics GloLight # MCL157RB that you referenced is designed to be recess mounted with the Recess Flange # A57GB. While it wouldn't quite be as flush mounted as the Optronics GLOLight LED Stop/Turn/Tail Light # STL101RFMB that you also have it would look pretty good on your trailer. For a very similar 2-1/2 inch LED light that is designed to be flush mounted check out the # MC57RB. For a flush mounted grommet you would want part # A55GB.
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Availability of a Optronics GLOLight LED Stop/Turn/Tail Light
Sounds like you are looking for the Optronics GLOLight LED Stop/Turn/Tail Light # STL101RFMB which we do carry. I attached a review video for you to check out as well.
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Do you have a question about this Trailer Light?

Info for this part was:

Expert Research:

Mike L

Expert Research:

Jameson C

Written by:

Tricia G

Video Edited:

Dustin K

Video Edited:

Chris R

Installed by:

Cole B

Updated by:

Wilson B

Updated by:

Brian T

Updated by:

Amanda K

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