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Identification Light Kit for Trailers over 80" Wide - Submersible - 3 LEDs - Red
Optronics

Identification Light Kit for Trailers over 80" Wide - Submersible - 3 LEDs - Red

Part Number: MCL22RK3B
In Stock
$48.01
Retail:$109.18
You Save: 56%
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Waterproof identification light kit with (3) 3/4" diameter red LEDs is designed for trailers wider than 80". Supplemental brake function - lights brighten when brake pedal is pressed. Recessed mount with grommets. 3-Wire molded harness. Great Prices for the best trailer lights from Optronics. Identification Light Kit for Trailers over 80" Wide - Submersible - 3 LEDs - Red part number MCL22RK3B can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - MCL22RK3B

Highlights

  • Clear Visibility When Braking: Supplemental brake function brightens all 3 red LEDs for easy-to-see stops.
  • Reliable In Any Weather: Sonically sealed, waterproof housing and lens keep water out even when submerged.
  • Simple Wiring Setup: 3-wire molded harness—white for ground, black for tail, red for brake—makes hookup clear.
  • Tight, Clean Fit: Recessed mount with grommets installs in 3/4" holes for a low-profile look.
  • Energy Efficient Lighting: LEDs draw only 0.047 amps at 12.8 V, giving bright light with minimal power use.
  • Road Legal: DOT compliant and P2 rated so your trailer meets lighting regulations.

Features to know about

Brighter and More Efficient Lighting: 3 Red 3/4" LED Uni-Lites

This identification light kit uses three 3/4" round red LEDs that are far brighter and more efficient than old-style incandescent bulbs. The LEDs draw only 0.047 amps at 12.8 volts, making them easy on your trailer’s electrical system while keeping you clearly visible at night. Each light brightens when the brake pedal is pressed, so other drivers instantly see your signals. With no fragile filaments to burn out, these LEDs last up to 50 times longer and never need bulb replacements.

Built for Wet Conditions: Sonically Sealed and Submersible

Water can ruin most trailer lights, but not these. Each light’s polycarbonate housing and lens are sonically sealed together to create a single waterproof unit that’s fully submersible. Whether you’re launching a boat or driving in heavy rain, water won’t sneak in and cause corrosion or short out the diodes. That sealed construction keeps the lights shining bright and reliable in the harshest environments.

Simple Wiring and Secure Mounting: 3-Wire Molded Harness with Grommets

The integrated harness makes installation straightforward. It comes with a white wire for ground, a black wire for tail light power, and a red wire for the brake light function. Each light recess-mounts using the included black grommet, so everything fits tight and clean. You’ll need a 3/4" diameter hole for each light—just right for a snug fit that keeps the housing secure without sticking out awkwardly.

Durable Construction for Long-Term Dependability: Polycarbonate Lens and Housing

Each Uni-Lite features a tough polycarbonate lens and housing designed to handle vibration, moisture, and everyday use. The durable materials protect the LEDs from damage while keeping clarity high so your signals stay visible. With DOT compliance and a lifetime warranty on the LEDs, this kit is built to last and perform reliably every time you hit the road.

Specs

Dimensions

  • Individual light dimensions: 3/4" diameter x 7/8" deep
  • Grommet diameter: 11/16"
  • Approximate wiring length (overall): 198"
  • Approximate wiring length (per light): 15"

Dimensional diagram of Optronics Identification Light Kit MCL22RK3B showing measurements for individual LED lights and grommets used on trailers over 80 inches wide.

Electrical

  • Diodes: 3 (1 per light)
  • Power draw at 12.8 volts: 0.047 amps

Warranty

  • Lifetime warranty: on LEDs

MCL22RK3B Optronics Uni-Light LED Trailer ID Light Harness with Supplemental Brake Function - 3 Diodes - Red





Customer Satisfaction Score:

Ratings & Reviews

4.8

811 reviews
Review sort icon
Waterproof identification light kit with (3) 3/4" diameter red LEDs is designed for trailers wider than 80". Supplemental brake function - lights brighten when brake pedal is pressed. Recessed mount with grommets. 3-Wire molded harness.

by:

This is the second great experience I’ve had with your company. Even though the item wasn’t in stock you kept me informed and got it very quickly. I highly recommend etrailer.



by:

Worked as it should.



by:

Easy to install and hook up without removing my old lights or installing new wire. Just what toe old truck needed.



by:

Easy installation; works great. Not heavy duty unit but fits my needs perfectly.



by:

Customer service was good, kept me up to date on my order. And fast shipping.



by:

Perfect replacement for original light



by:

The Light bar is good quality. I would have liked to have two wires on light bar instead of just the one wire. My trailer has two wires a negative and positive. The light bar frame is considered the ground so attaching the light bar with screws to trailer frame grounds the light bar. What do I do with my ground wire now?



by:

Great replacement for the original incandescent light bar on my 1997 Shorelander boat trailer. Same hole pattern, so no drilling.



by:

It looks great. I have not installed it yet.



by:

Delivery time was as told. Packaging was good and padded. Looks fine works fine. Wiring is color coded. I’ve used this company as couple of times and would again.



by:

this light bar is exactly what I needed to finish off my home built trailer. Though it hasn't been attached to the rear bumper as yet. You have to agree its going to look great. Thanks etrailer.



by:

This was a great product to replace the old light that usually had at least one of the 3 bulbs not working because of a bad connection in the socket due to corrosion. The mounting holes even lined up so I did not have to drill new holes and the pig tale wire was plenty long enough to make installation a snap.



by:

Great product light bar i ordered came in two days couldnt be happier with it i will be ordering from u guys again



by:

Order sent out quickly! Will do business with again.



by:

4 stars because I haven't been able to install yet. The light bar came well packaged a day early. It appears to be an exact replacement for the one on my boat trailer. The old one had shorted out and this one, being LEDs, are sealed and submersible. Not my first purchase from Etrailer, and probably not my last. Great website - easy to use - great devilery and follow-up! Who does that anymore?



by:

Just what I needed. Fast shipping too. Have done and will continue to do business here.



by:

Excellent quality. Beautiful product. I bought this light to for my horse trailer. A lens on the existing light broke somehow. I did not even realize until I removed the original light that it was actually in horrible shape to begin with. When I received this new light, the size in dimensions were exact with the old one but it was so much better looking overall that i was actually glad that the original one broke! My trailer looks so much better now and for such a low price!!!



by:

Been replacing taillights and clearance lights on my 1992 boat trailer. Opted for sealed LEDs to replace all the old incandescent ones that I had to work on every year to keep em going. These are brighter, sealed for water resistance and very easy to install, plus they require less power and work so much better. I'm super pleased with all the products I've gotten from e trailer, quality stuff, fast secure shipping. Picture shows Optronic tail lights I added as well. Great company, that offers great products!



by:

Very good quality light strip. Have not installed it yet bit changing out the old one looks pretty straight forward to me.



by:

Updated my boat trailer with these amazing bright lights. Easy installation using the heat shrink connectors. Everything came as exactly ordered.



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by:

beautiful lights ,excellent construction, could not be happier thank you



by:

4/5 due to no instructions. I have very poor cell service so I had to go to town to watch the how to video.


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