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

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

Item # MCL32ABB
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LED Trailer Clearance or Side Marker Light w/ Reflex Reflector- 3 Diodes - Black Base - Amber Lens Rectangle MCL32ABB
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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. Lowest 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 800-298-1624 for expert service.
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  • Reviews (88)
  • Q & A (13)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL32ABB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • 4L x 2W Inch
  • Surface Mount
  • Side Marker
  • Non-Submersible Lights
  • Optronics

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.


  • LED trailer light functions as a clearance light or side marker light when properly mounted
  • Built-in reflex reflector removes the need for a separate reflector
  • 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 black ABS housing and acrylic lens
  • Amber lens over white LEDs
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • 2-Wire design includes power lead and ground wire
  • DOT compliant
  • P2 rated


  • Dimensions: 4" long x 2" tall x 1" deep
  • Distance between mounting holes (center to center): 3"
  • Diodes: 3
  • Power draw at 12.8V: 0.006 amps
  • Lifetime warranty on LEDs

Optronics MCL32 Series LED Side Marker and Clearance Light with Reflex Diagram

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.

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

California residents: click here

Customer Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (88 Customer Reviews)

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.


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.


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.


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


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.

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.
Grant N - 01/22/2018


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.

Good, no problems
Donald - 11/05/2018


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


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!!!!

Thank you once again, still money well spent!! Look very nice and much better than OEM! Thanks!
Bob. S - 10/01/2018


As described. Nice replacement for my old running lights.

Richard E - 06/13/2020


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.


The lights are working great. A huge improvement over the incandescent lights replaced. Fast shipment and easy transaction from etrailer.


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


I have been building trailers for a while now. When I found etrailer they cut my cost way down. I really haven’t shopped elsewhere sense!


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.


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.


Great product. Way brighter than the stock 1986 light


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.

Excellent. Still functioning well
Robert - 01/11/2019


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


Works as Intended


Items were delivered in a timely manner even without expedited shipping. Items were as described and are a perfect replacement for the current incandescent clearance markers on my RV. I've done business with etrailer multiple times and they have yet to let me down. Highly recommended.


Fast and easy to order


The service was excellent.I was a little disappointed in the lights.They are brighter than the incandescent lights I had but not as bright as I thought. They are an exact fit of the lights I removed so I didn't have to drill any new holes.Thank you


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.


Yet to be installed but appear everything they are advertised. Looking forward to putting them into service as soon as I get a wiring issue with my camper ironed out.


Replaced all the lights on my car trailer with these. Very happy with the light output and the look.


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.

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