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LED Trailer Clearance or Side Marker Light w/ Reflex Reflector- 3 Diodes - Black Base - Amber Lens
Optronics

LED Trailer Clearance or Side Marker Light w/ Reflex Reflector- 3 Diodes - Black Base - Amber Lens

Part Number: MCL32ABB
In Stock
$14.61
Trailer Lights
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4" x 2" Rectangle. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing with black base. Surface mount - hardware not included. 2-Wire design. P2 rated. Great Prices for the best trailer lights from Optronics. LED Trailer Clearance or Side Marker Light w/ Reflex Reflector- 3 Diodes - Black Base - Amber Lens part number MCL32ABB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - MCL32ABB

Highlights

  • Brighter Light, Less Power: Three white LEDs behind an amber lens give high visibility with only 0.006 amps draw.
  • One Light, Two Uses: Works as either a clearance or side marker light for flexible placement.
  • Built-In Reflex Reflector: Removes the need for a separate reflector for a cleaner install.
  • Tough, Long-Lasting Build: Black ABS housing and acrylic lens resist wear and impact.
  • Quick Surface Mount: 4"x2"x1" design mounts on 3" centers with 2-wire hookup.
  • Road Legal Visibility: DOT P2 rating ensures compliant performance on 12V DC systems.

Features to know about

Brighter Light with Less Power: Efficient 3-Diode LED Design

Old incandescent lights can dim over time and draw unnecessary power. This 4" x 2" amber LED clearance or side marker light uses three diodes that shine bright while pulling only 0.006 amps at 12.8V. It’s designed for 12V DC systems and puts out clean, even light that makes your trailer more visible without adding load to your wiring. With LEDs lasting up to 50 times longer than bulbs, you can install it once and forget about replacing filaments again.

No Extra Reflectors Needed: Built-In Reflex Reflector

Keeping your trailer visible from all angles matters, especially when parked or under low light. The built-in reflex reflector on this light removes the need for a separate reflector, keeping everything integrated and clean. It gives you both the required reflection and active illumination in one compact housing, helping meet lighting requirements while simplifying your setup.

Simple, Reliable Setup: Surface Mount with 2-Wire Design

Wiring doesn’t have to be a headache. This light surface mounts on 3" centers and uses a straightforward 2-wire design—one power lead and one ground wire—for quick connections. The screw holes are 1/4" in diameter, ready for standard mounting hardware. The housing is made of durable black ABS with an amber acrylic lens, so it holds up well after plenty of miles on the road.

Focused Coverage Where You Need It: P2-Rated Beam Pattern

Visibility angles make a big difference in safety. This P2-rated light produces a 45-degree beam on either side of center for a total of 90 degrees of coverage—bright enough to be seen straight on but not intended for full side visibility. When properly placed, it works perfectly as either a clearance or a side marker light for precise illumination where it’s needed most.

Built to Last: Durable Housing and Lifetime LED Warranty

Moisture, vibration, and sun exposure can wear down cheaper lights fast. The Optronics LED assembly is built with a tough ABS body and sealed acrylic lens that protect the three diodes inside. It’s DOT compliant and comes backed by a lifetime warranty on the LEDs, giving you peace of mind that these lights will stay bright and dependable trip after trip.

Specs

Dimensions

  • Overall dimensions: 4" long x 2" tall x 1" deep
  • Distance between mounting holes (center to center): 3"

Technical diagram of Optronics MCL32 Series LED trailer clearance and side marker light with reflex reflector, showing rectangular amber lens, black base, and dimension labels for mounting reference.

Electrical

  • Power draw at 12.8V: 0.006 amps
  • System compatibility: 12V DC
  • Wiring design: 2-wire (includes power lead and ground wire)
  • Wire gauge: 16 gauge

Lighting

  • Light type: LED
  • Number of diodes: 3
  • Lens color: Amber
  • Base color: Black
  • Material: Acrylic lens with ABS housing
  • Function: Clearance or side marker light (when properly mounted)
  • Reflector: Built-in reflex reflector
  • Rating: P2 rated
  • Compliance: DOT compliant

Mounting

  • Mount type: Surface mount
  • Mounting hardware: Not included
  • Mounting hole diameter: 1/4"

Warranty

  • LED warranty: Lifetime warranty on LEDs

MCL32ABB Optronics LED Clearance or Side Marker Trailer Light w/ Reflex Reflector- 3 Diodes - Black Base - Amber Lens - P2 Rated





Customer Satisfaction Score:

Ratings & Reviews

4.8

4489 reviews
5 Stars
(3855)
4 Stars
(446)
3 Stars
(83)
2 Stars
(36)
1 Star
(69)
Review sort icon
4" x 2" Rectangle. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing with black base. Surface mount - hardware not included. 2-Wire design. P2 rated.

by:

I was initially disappointed with my order because there were 2 items missing (1-MCL32ABB, 1-MCL32RBB). However, I called and the problem has been corrected and now I’m happy with my etrailer parts.



by:

The items arrived earlier than promised, which is good. They were well packaged and in new condition. They worked when connected and easy to install. The pricing is competitive. They were used for side lights on a 16 foot flatbed trailer.



by:

Great bang for your buck led replacement side marker lights



by:

The lights are great! Perfect fit, exact mounting hole alignment and much brighter than before. Susan was fantastic and extremely helpful. A person could not ask for a better service representative. I give etrailer and Susan 5 stars plus. I'm truly an etrailer fan and they are good managing exchanges if an item doesn't fit, etc. You won't do better than etrailer.



by:

I'm very happy with the service from e-trailer the light that I ordered works great. A special thanks to Adam for all that he did for my order



by:

These lights are great as I don't have to go around the trailer and check the lights to see if they are burning when I hook up to the trailer.



by:

Basic trailer side marker light. Works great. No bulbs to get loose or burn out.



by:

Great product. Way brighter than the stock 1986 light



by:

Very quick on the shipment and very easy to install. They are really nice and bright which is what I was trying to achieve on my 5th wheel . I installed all clearance and running lights, couldn't beat the price and quality.
I don't have any pictures but when I plugged it in (full sun) and backed away from rear the lights were bright! I am thoroughly pleased.



by:

Easy to install once I figured out which wire on my camper was hot and which was ground. Not the light's fault, the builder used black wire for everything. A great product at a reasonable price



by:

I have ordered several times from etrailer and both times have been very satisfied with their service and the products. I have several different trailers, stock trailer, flatbed utility trailer, small bumper pull camper and a 5th wheel camper and for every one of these trailers, if I need parts I first look to etrailer.



by:

Quick and easy!!



by:

Excellent product, easy to install and a perfect fit. I plan on replacing the remainder of the lights with these LED's as the bulbs burn out on the originals.

Robert profile picture

Robert

1/11/2019

Excellent. Still functioning well



by:

We purchased these LED lights for our horse trailer remodel. Love them and the LED lighting really modernizes the look of the trailer. We have purchased these lights for the sides and the same light in red for the rear of the trailer. We are delighted with the service provided by etrailer.com. We have purchased from them several times and will continue to use them for our trailer parts.



by:

I have bought several items over the past few years from etrailer and get great customer service and good products always. The prices are good and the time it takes to get the product is pretty fast.

Pat M. profile picture

Pat M.

10/27/2017

All your products are great and work very good



by:

Great quality products that arrived really fast. The videos attached made hooking up the lights a breeze. I saved approx 50% compared to our local trailer shop

Steve T. profile picture

Steve T.

11/1/2017

Everything is working perfectly. I have used this trailer every weekend this year. Lots of mud and water. No issues at all. Im proud when I see my trailers lights so much brighter than other guys trailers. Happy Canadian here!!



by:

I’m very happy with these LED tail lights. Bought them to replace the ones that came on the trailer. They are bright and seem to be of high quality. They were easy to install. The only slight drawback is that it’s a bit tricky to get the wires to lay flat enough against the light to get it to sit flush with the back of the trailer. But in the end it worked fine. I would recommend these as a good replacement for older, smaller, incandescent tail lights.



by:

LEDS are SO much better. The light is crisp and strong. Incandescent bulbs can't compete. The install was easy and an exact match to the incandescent I replaced

Christopher L. profile picture

Christopher L.

3/12/2022

Ive only used one and the rest were for the future. . The reason being that I got the trade-in fever and these lights do not fit my new TT, so they made their way to the trash.



by:

As described. Nice replacement for my old running lights.

Richard E. profile picture

Richard E.

6/13/2020

Great



by:

Bright little S.O.B. And should do the trick for my grounding problem. I needed room behind the light to screw the ground wire to the skin of the R.V. Since all I have is one hot wire coming out for placement of the lights.
Was told the gap behind the light was 3/8 of an inch but its more like 1/4 inch but should be enough room for a flat head screw with a wire under it.
Will use silicon to seal the screw and wire to keep it from rusting, the problem I had with the old lights using the mounting screw to ground the lights to the skin of the R.V.
Time will tell if all works out?? As planned.

Donald profile picture

Donald

11/5/2018

Good, no problems



by:

WOW!!! Am I glad I ordered these to replace the original OEM ones on my fifth wheel camper! I truly am so impressed with these guys, way way brighter than the incandescent ones!!! They were super easy to change out and wire up probably took around five minutes a light. The folks at etrailer.com are AWESOME to work with, very efficient about following up on order received when it ships and when it is delivered! Keep up the great work! Thank you!!!!

Bob. S. profile picture

Bob. S.

10/1/2018

Thank you once again, still money well spent!! Look very nice and much better than OEM! Thanks!



by:

I replaced all the clearance lights and taillights on our fifth wheel camper with these OE style LED versions. They are much brighter and therefore much safer, especially in the case of the tail/brake/turn lights seen elsewhere at etrailer. They should last a lot longer than the original bulb units. I also like the way they look as compared to the old bulb style. Our camper was only a year old, and I don't understand why they all wouldn't come from the factory with LEDs. I installed them all myself without issue.

Grant N. profile picture

Grant N.

1/22/2018

Thank you for your follow up. I am still happy with my purchase,although they are installed on a fifth wheel camper trailer that doesnt getused a lot and usually in the daylight hours, so the lights havent got alot of hours on them. So far, so good. Thanks again.



by:

Very nice product. Lenses fit tight to light housing.



by:

Replaced taillight with LED so decided to change running lights as well!



by:

Fit where the old clearance lights were mounted perfectly. Very bright and look good. Order was shipped and delivered quickly.

Ed profile picture

Ed

3/29/2024

Its been one year and 4,000 miles since we installed these lights. Working and still looking great.


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See what our Experts say about this Optronics Trailer Lights


Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Amy B
Updated by:
Amy B
Employee Brian T
Updated by:
Brian T
Employee Chris R
Video Edited:
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Employee Wilson B
Written by:
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Employee Zach D
Video by:
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