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LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens

LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens

Item # MCL88RCB
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Optronics 17L x 1-1/2W Inch Trailer Lights - MCL88RCB
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17" Long x 1-3/8" tall x 1" deep. Waterproof identification light bar is designed for trailers wider than 80". Durable polycarbonate lens and housing. Surface mount to trailer. 2-Wire pigtail. Lowest Prices for the best trailer lights from Optronics. LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens part number MCL88RCB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (77)
  • Q & A (1)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL88RCB

  • Clearance Lights
  • ID Bar
  • LED Light
  • Red
  • Surface Mount
  • 17L x 1-1/2W Inch
  • Optronics
  • Submersible Lights
  • Rear Clearance

17" Long x 1-3/8" tall x 1" deep. Waterproof identification light bar is designed for trailers wider than 80". Durable polycarbonate lens and housing. Surface mount to trailer. 2-Wire pigtail.


  • LED Trailer light functions as an identification light bar for trailers wider than 80"
  • Sonically sealed, waterproof housing and lens unit is submersible
  • 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 polycarbonate housing and lens
  • Clear lens over red LEDs
  • Compatible with 12V DC systems
  • Mounts to surface of trailer - hardware not included
  • 2-Wire design includes power lead and ground wire
  • DOT compliant
  • P2 rated


  • Dimensions: 17" long x 1-3/8" tall x 1" deep
  • Distance between mounting holes (center on center): 16-1/8"
  • Diodes: 3
  • Power draw at 12.8V: 0.022 amps
  • Lifetime warranty on LEDs

Optronics MCL88 Series LED Identification Light Bar Dimensions

Sonically 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 housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and 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.

MCL88RCB Optronics LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens - P2 Rated

Alternate part number: MCL-88RCB

California residents: click here

Video of LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens

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

Video Transcript for Optronics Identification Light Bar Installation

Hi, I'm Shane with etrailer.com. Today, we're going to be taking a look at, I'm going to show you how to install Optronics 3 Diode LED Identification Light Bar on our flatbed trailer. It's going to function as a third tail light. You can see we're going to have three LED lights. It's going to be 17 inches long by an inch and three eighths, by one inch. It's going to be fully sealed, and waterproof.

There are other options for these lights, you can also get them with a clear lens, and you can get them either longer or shorter, with more diodes or less.You can also get these to function as a brake light, as well as a running light. For this particular light, this is only going to function as a running light or a third running light. It's going to be a two wire design. You're going to have your ground wire and your power wire. Again, they're going to be LED.

What's nice about the LEDs over the incandescent, is they're going to last much longer. With the incandescent lights, you have to change the bulbs when they blow out. With these, you have no light bulbs to change.The lenses are constructed in polycarbonate material, so they're going to hold up in all weather conditions. They're going to mount .. two mounting locations.

You're going to have one here, and one here. It's going to come with the hardware. Now that we've gone over some of the features, let's show you how to get it installed.For this particular installation, we're going to be replacing the light. We're already going to have the power wire ran back. If you are adding the third brake light and you don't have one previously, or didn't have one previously, what you're going to do is you're going to take the power wire from your brake lights that are already on there, and you're going to run one from each side back to wherever you're putting this light on.

Then you're going to tie into the black wire.These are my wires coming from my two lights, what we're going to do is we're going to strip these back. I'm going to add on the heat shrink butt connector, and these don't come with your lights, but I highly recommend them because your wires are going to be outside, open to the elements. This will help protect your connections from corroding. We'll take your other one, we're going to strip this one back just a little bit more. It doesn't really matter which wire you strip back, or which wire you add on to. What we're going to do is we're going to add on our black wire to one of them.So like that. And then the other end of our butt connector. Strip it down. Go ahead and take our heat source and heat shrink that butt connector. If you don't have a heat gun, you can find these here at etrailer.com also. I'll take our ground wire and push it in like that. And the kit's going to come with hardware. You will have a small nut here to go on the back. Go ahead and tighten those down. Then for our ground wire, we just need to make sure we're grounding it into metal. So we'll take a self tapping screw, and you can see our metal frame right here.This is a good place to do it. And then take any extra wire that we might have, and bundle then it up. Zip tie it if we need to. Make sure we don't have any wire hanging down that could potentially get caught on anything. Then we can test it out. We'll make sure it's working correctly.

Customer Reviews

LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens - MCL88RCB

Average Customer Rating:  4.8 out of 5 stars   (77 Customer Reviews)

17" Long x 1-3/8" tall x 1" deep. Waterproof identification light bar is designed for trailers wider than 80". Durable polycarbonate lens and housing. Surface mount to trailer. 2-Wire pigtail.


Better than expected...works great. 907600


Excellent service and pricing and delivered right to my door, thanks! 891846


Good quality, just what I ordered. 746002


E-Trailer delivered my lights and they came in early. I haven't had a chance to install them yet but they look great. 719949


Easy install and great fit and look, glad to have all my lights working again. 717463


It's a good product. Finished installation is clean, almost invisible against the white frame of my trailer. Sealed waterproof LED's means that it should never need any repairs or have any burned out lights. It's much nicer than the flimsy tin three-light bar I replaced. 702745


direct replacement for my old one that was cracked and ugly. Looks great and does the job. 661602


This is a great light bar - I always go with LED when replacing any exterior lights on our trucks. This one looks nice and the three red LED's are good and bright! 589749


Got the products fast, well packaged and at a fair price... can't ask for more than that.. 526573


So far so good. All plastic. 521337


Looks good 449935


Glad I made the decision to switch to LED! Much brighter, and more reliable than the ole incandescent bulbs. No worries about bulbs vibrating out of their sockets. 436380

Great! No more wiggling the old incandescent bulbs to get it to light up, and no more pull overs by law enforcement. Glad I made the investment to switch to LED! As a regular etrailer customer...Thank you!
Steve - 09/30/2018



Items arrived quickly in good condition, quality was better than expected 436003


Great products, great service 387923


Second time using etrailer. Ordering ( shopping ) is easy. None of the local supply stores have the selection, or price. Etrailer always has exactly what I need. Items ordered delivered promptly and packaged well. Thank you all for running an awesome business. 316582


Was exactly what I needed, fast delivery. Very pleased 281897


Looks sharp, very bright and the clear plastic is still clear. I did take some other people's advice and since my trailer is white I used white cauk behind the light to cover any scratches and the wire hole. I then used clear cauk to seal around the light itself to keep moisture out. 275640

Still work great and no water has leaked into the light
Matt - 07/24/2017



I made this purchase for my son's boat trailer. I ordered on the Monday before Thanksgiving and it arrived the day before. My son was so excited he went out and hooked it up to his truck battery to show us how bright it was. He is very pleased! 163100


Great looking, easy install, high quality lighting product!!! :) 145859

Still working...
Kings - 08/11/2015





Excellent experience etrailer provided me excellent recommendation for the boat trailer application I have, but more important to me they were lower that anyone i found on the web including ebay. I payed no sale tax and no shipping. Delivery was within days of ordering with excellent comunication from their part. 3618


Review from a similar Straight Line in Trailer Lights

Light is just what I had anticipated. However, what I did not anticipate was the small hole size. And because the mounting hardware does not come with, I had to dig through my stash to fine two that worked. Seems like mounting hardware should be included, especially if hole size is so small with limited solutions. 901102


Review from a similar Straight Line in Trailer Lights

Awesome. Great replacement of the incandescent version and fit in existing holes! 865205


Review from a similar Straight Line in Trailer Lights

I bought this light one year ago and it is a major improvement over the old light I replaced. Easy to install and is bright. 784520


Review from a similar Straight Line in Trailer Lights

excellent delivery , now see if it works out!’ 767556

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Availability of Red LED Light Bar for Car Hauler Trailer
    One item that may suit your needs is Optronics # MCL88RCB. This light bar is 17-inches long, uses 11 red LEDs and features a 2-wire hookup. This is a single-function light. Part # STL79RB also has similar dimensions and 11 diodes but has a red lens. This is a 3-function light. Part # STL80RB is an 11-LED, single-function red lens fixture. All light bar products are linked for your review.
    view full answer...

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Info for this part was:

Video Edited:
Jacob T
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Brian T
Installed by:
Cole B
Test Fit:
Shane H
Video by:
Michael B

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