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Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens

Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens

Item # MCL13A2B
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2-1/2" x 1-1/16" Rectangle. Waterproof, LED trailer light serves as either a side marker or clearance light when properly mounted. Surface mount to trailer - hardware not included. 2-Wire design. P2 rated. Lowest Prices for the best trailer lights from Optronics. Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens part number MCL13A2B can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (111)
  • Q & A (26)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL13A2B

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • Surface Mount
  • 2-1/2L x 1W Inch
  • Submersible Lights
  • Optronics
  • Rear Clearance
  • Side Marker

2-1/2" x 1-1/16" Rectangle. Waterproof, LED trailer light serves as either a side marker or clearance light when properly mounted. Surface mount to trailer - hardware not included. 2-Wire design. P2 rated.


  • Rectangular LED mini trailer light functions as a clearance light or a side marker when properly mounted
  • 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
  • Amber lens over white LEDs
  • Compatible with 12V DC electrical systems
  • Surface mounts to trailer - hardware not included
  • 2-Wire design includes power lead and ground wire
  • DOT compliant
  • P2 rated


  • Dimensions: 2-1/2" long x 1-1/16" wide x 5/8" thick
  • Distance between mounting holes (center on center): 1-7/8"
  • Diodes: 2
  • Power draw at 12.8V: 0.046 amps
  • Lifetime warranty on LEDs

Optronics MCL13 Series LED Clearance Marker Light 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.

MCL13A2B Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Rectangular - Amber Lens - P2/P3 Rated

Alternate part number: MCL-13A2B

California residents: click here

Video of Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens

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

Video Transcript for Optronics Trailer Lights - Clearance Lights - MCL13A2B Review

Today we're reviewing part number MCL13A2B, from Optronics. This is a sealed mini LED light. It serves as a side marker, clearance, or identification light. It has two amber LED lights. And as you know, LEDs will last for thousands and thousands of hours, as opposed to a few hundred hours for incandescent bulbs. So if you're looking to upgrade your marker lights on your trailer, this would be a good choice for you.

It has no bulbs to replace. There are no filaments to burn up, the way you get with an incandescent bulb. Also, it surface mounts, and it's waterproof. It's sealed. It makes it waterproof.

And if you'd like, you can get this part sold separately. This is a highly polished chrome mounting ring. It's part number A13C2B. And it fits right around the marker light and really jazzes it up, don't you think Looks pretty. Now we can connect our wires, and I'll show you how nicely this does shine at night.

First we'll connect our ground wire. Remember that ground wires always are mounted on a clean, unpainted metal surface. So the white wire with the ring terminal is your ground. The black wire is your 12-volt. That's your lead.

Now we're going to turn off our overheads and I'll show you how this works. Doesn't that look good And you can see even the chrome shines because of the reflection from the LED light, so it looks real cool. Okay, we can turn off our power source and turn on our overhead lights. I will disconnect this, and I'll take off the separate part. Remember this is sold separately. This light measures 2-1/2" long. It's 1-1/6" tall. It's 11/16" deep. It's approved by the Department of Transportation, and there's a lifetime warranty on the LEDs. This light also functions as an exact replacement for Peterson part number M168A. And there you have it for part number MCL13A2B, from Optronics, the sealed mini LED side marker clearance or identification light. .

Customer Reviews

Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens - MCL13A2B

Average Customer Rating:  4.8 out of 5 stars   (111 Customer Reviews)

2-1/2" x 1-1/16" Rectangle. Waterproof, LED trailer light serves as either a side marker or clearance light when properly mounted. Surface mount to trailer - hardware not included. 2-Wire design. P2 rated.

- MCL13A2B

Have not used products yet but the information found on the website is very helpful and shipping is outstanding. 714464

- MCL13A2B

The corner marker lights on my trailer take a lot of abuse from gravel roads these optronics lights are much more durable and brighter than the lights that came on my trailer. Thanks etrailer! 690512

- MCL13A2B

Light still works great a year later - no issues whatsoever. 377386

- MCL13A2B

Lights were smaller than I expected but perform great. 355953

- MCL13A2B

The lights are nice work great wist it would came with a wire nut or something to hook it up but that's not a big deal breaker. thanks 708251

- MCL13A2B

These lights are great. Easy to put on and the backup lights are bright enough to see in the dark . 369534

- MCL13A2B

When my clearance light quit I ordered the Optronics MCL13A2B light, the MCL13C2B chrome ring, and the MCL13G2B gasket. So this review is actually of all three products. I wanted to make a watertight installation and actually wasn't exactly sure how to best accomplish that. So here is what I did. 1. I place the gasket on the chrome ring. 2. I ran a bead of silicone around the gasket edge inside the chrome ring. 3. I placed the LED light into the chrome ring. My objective is to create a sealed light assembly. 4. I then backed the chrome ring with butyl tape and mounted it on the trailer. The light is sealed from the back by the butyl tape and the silicone plus the gasket keeps the water from entering from the front. I've ordered clear caulk which I will apply on the top half of the light to further seal out water. 542721

- MCL13A2B

just as advertised, economical, looks great, bright, nice lights! 90820

Still working great a year later, highly recommended!
Kevin - 07/22/2014


- MCL13A2B

The light works great, and really makes my trailer more visible at night. Shipping was very fast and order was perfect. 124327

- MCL13A2B

As ordered 737279

- MCL13A2B

Smooth transaction, fast ship, great f it 716669

- MCL13A2B

the white ground wire that has the metal loop at the end was broken off. I probably have another one at home so easy enough to fix, but it will be okay. 671138

- MCL13A2B

I am renovating an old boat and trailer and the clearance lights and tail lights were no good. I found these clearance lights on etrailer that are perfect for replacing the old lights. These lights are made for easy installation and are water proof LED. I searched many on line stores before deciding on these and price was not my only consideration. And they arrived super quick which I was not expecting. I recommend these lights. 612102

- MCL13A2B

I received what I ordered, fairly quickly and am perfectly satisfied with the process. I have ordered these lights before (just decided to add more to my trailer) and will order them again if needed. I have ordered other items from etrailer.com before and am satisfied with each order. Thank you, Howard P.S. I also like the associated helpful videos and instructions. No matter how much we think we know, we can always find something we didn't. 578489

- MCL13A2B

Added these to my new fenders Easy to install. Look nice 572681

- MCL13A2B

Lights came in last nite. I have a wells cargo double axle 6x12 trailer that I'm going to "spiff"up.im adding and replacing old marker lites and these mini LED lites with chrome trim were the answer! I will send you pics of before and after when they're mounted. Great looking lites and good price . 544512

- MCL13A2B

Everything that I wanted. 518945

- MCL13A2B

Get the job done. 501902

- MCL13A2B

Exactly what I needed for the new boat fenders. 487661

- MCL13A2B

Looks like a good product 487159

- MCL13A2B

Nice and bright looks like good quality 463986

- MCL13A2B

works great 407357

yes i put them on they work then but havent use the trailer yet so as far as i know they still do,,, thanks
bleu n - 07/20/2018


- MCL13A2B

Very sturdy 407565

- MCL13A2B

Excellent LED running lights Product is what it is for upgrading my boat trailer running lights. Etrailer has great product availability, very good and fair pricing and super service and fast shipping. The reasons I buy from etrailer whenever I need cargo and boat trailer parts. 392126

- MCL13A2B

Excellent service arrived on time as described and perfect fit 395193

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C
Written by:
Tyler C
Video by:
Kathleen M
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Brian T

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