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GloLight Uni-Lite LED Clearance and Side Marker Light - Submersible - 2 Diodes - Round - Amber Lens
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GloLight Uni-Lite LED Clearance and Side Marker Light - Submersible - 2 Diodes - Round - Amber Lens

Item # MCL110AKB
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MCL110AKB - Submersible Lights Optronics Trailer Lights
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3/4" Round. Waterproof mini trailer light functions as both a clearance light and a side marker light when properly mounted. 2 Amber LEDs create a smooth, bright circle of light. Recessed mount with included grommet. 2-Wire pigtail. PC rated. Lowest Prices for the best trailer lights from Optronics. GloLight Uni-Lite LED Clearance and Side Marker Light - Submersible - 2 Diodes - Round - Amber Lens part number MCL110AKB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (665)
  • Q & A (3)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL110AKB

  • Clearance Lights
  • Round
  • LED Light
  • Amber
  • Recessed Mount
  • 1 Inch Diameter
  • Optronics
  • Submersible Lights
  • Rear Clearance
  • Side Marker

3/4" Round. Waterproof mini trailer light functions as both a clearance light and a side marker light when properly mounted. 2 Amber LEDs create a smooth, bright circle of light. Recessed mount with included grommet. 2-Wire pigtail. PC rated.


  • Small, round trailer light functions as both a clearance light and a side marker light when properly mounted
  • Sealed, waterproof construction is submersible
  • GloLight Uni-Lites feature a smooth, bright circle of light
  • 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
  • Polycarbonate lens and housing
  • Amber lens
  • Recessed mount with included black PVC grommet
    • Installation requires a 3/4" hole at desired location
  • 2-Wire pigtail - includes power lead and ground wire
  • DOT compliant
  • PC rated - can be mounted in any 360-degree position


  • Dimensions: 3/4" diameter x 15/16" deep
  • Diodes: 2
  • Power draw at 12.8 volts: 0.052 amps
  • Lifetime warranty on LEDs

Optronics light dimensions

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.

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and a side marker light.

MCL110AKB Optronics Uni-Light Mini LED Side Marker/Clearance Trailer Taillight - PC Rated - Amber

Video of GloLight Uni-Lite LED Clearance and Side Marker Light - Submersible - 2 Diodes - Round - Amber Lens

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 Uni-Lite LED Clearance and Side Marker Light - Submersible - 2 Diodes - Round - Amber Lens - MCL110AKB

Average Customer Rating:  4.9 out of 5 stars   (665 Customer Reviews)

3/4" Round. Waterproof mini trailer light functions as both a clearance light and a side marker light when properly mounted. 2 Amber LEDs create a smooth, bright circle of light. Recessed mount with included grommet. 2-Wire pigtail. PC rated.


Everything I have purchased from this company has been great, The quality and ptrice is right on, Thanks.. 568961


Great product, still going strong after one year . 725202


I would like to award more than 3 stars for this product but I have recently had issues with a few of these lights burning out. Normally, they are dependable so maybe I got a bad lot of lights during my last purchase. However, I DO like these glow lights as they are very bright and noticeable even in the daytime. That said, you would think that as LEDs go they would last a long time and I do have several in use that HAVE lasted, but I also have had several that burned out fairly quickly. I am happy to report that etrailer has stood behind the manufacturer Optronics lifetime warranty and replaced the defective lights. My advice for anyone considering using these lights is to employ them in an easy-to-access application so that if it becomes necessary to change out a defective light, you will not have difficulty in accessing the defective light(s). 714761


Easy to install. Clean look and bright. 657327


Nice replacement for a clearance light. 594561


Very bright, looks good and seem to be of good quality. 546155


Easy install. Works great, nice and bri ght! 526947

After a year they are still working great no problems. Bright small lights!
Robert P - 06/26/2019



Great company easy to work with 519782


Needed small lights for parking lights for my RZR to make it street legal. Their small enough to fit the lip of the fender and good and brght 496728


clearance light missing rubber grommet. Hitch seems to be well made and easy to operate. Fairlead is perfect for my trailer. 495645


Exactly what I was looking for to repair an old trailer I purchased. I have never been happier with the personalized attention that I get from the sales person I deal with. 491700


Super fast shipping. Haven’t installed yet. 481332


Great products, prices, easy to use web site, met delivery promise during busy Christmas season.....I will buy again and I will recommend. 462182


The MCL 110AKB lamp is my favorite for trailers and side-by-sides. It is much brighter than you would expect, but there is a reason for that. It is advertised at 0.052 Amps at 12.8 volts, but the ones I've measured consumed 0.11 Amps at 12.8 volts (measured with two different meters, neither recently calibrated). Other info missing from the description: body diameter where the grommet sits is 0.594" +/- .002. Outer diameter of grommet in front of the panel (what is seen) is 1-3/32" Photo shows comparison of light output with MCL 12AKB lamp 449104


as advertised. very bright. very fast s hipping. 431613


Nice and small. 404932


Very bright light. 402461


Exactly what I needed. Price was right also. 402458


Little light, but SUPER bright. 391113


What a great customer service experience! Both Pat and Angela provided info on the parts i needed. I will be ordering from etrailer again! 378248


Good lights. Bright 368232


great looking lights! 352676


Reasonably priced and seems to be of good quality. Shipping was quick and reasonable. 347081


The lights were easy to install and are very bright. they make a big difference for seeing where the trailer is after dark. 336067


Great light, Very easy to install. 286821

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Info for this part was:

Expert Research:
Jameson C
Installed by:
Cole B
Written by:
Amy B
Video Edited:
Chris R
Edited by:
Sarah W
Updated by:
Brian T

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