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Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens
(1371 reviews)
Price: $5.42
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Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Amber Lens
Part Number: MCL13A2B
In Stock
$5.42
Retail:$5.96
You Save: 9%
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Optronics Trailer Lights - MCL13A2B
Highlights
- Reliable In Any Weather: Sonically sealed lens and housing keep water out, ideal for boat use.
- Fewer Replacements Needed: LEDs last 50 times longer and draw just 0.046 amps at 12.8V.
- Easy 2-Wire Setup: Simple power and ground leads mean quick, no-resistor installation.
- Compact Fit: 2-1/2" x 1-1/16" size with 2" hole spacing mounts easily on most trailers.
- Clear Visibility: P2-rated beam covers 90° for bright clearance or side marking.
- Road Legal: DOT compliant so your trailer stays visible and compliant on the road.
Features to know about
Brighter and More Efficient Lighting: 2-Diode LED Design
This compact 2-1/2" x 1-1/16" rectangular light uses two white LEDs behind an amber lens to give you bright, even illumination with minimal power draw. At just 0.046 amps at 12.8V, it’s extremely efficient, so you can run multiple lights without stressing your electrical system. The LEDs last up to 50 times longer than incandescent bulbs and don’t have filaments to break, so there’s no need for replacements or maintenance.
No More Water Damage: Fully Sealed and Submersible
The housing and lens are sonically sealed into a single waterproof unit, making this light submersible and ready for wet conditions. Whether you’re dealing with rain, road spray, or full immersion, the sealed polycarbonate construction keeps water out and the circuit board protected. That means reliable lighting even when your trailer sees the ramp or the wash bay.
Simple Installation: Surface-Mount Two-Wire Setup
Installation is straightforward with the surface-mount design and standard two-wire hookup—black for power and white for ground. You can mount it horizontally or vertically on 2" centers using screws of your choice (hardware not included). The compact size and flat back make it easy to add or replace lights without cutting new holes or dealing with adapters.
Dependable Visibility and Safety: DOT P2-Rated Beam
This P2-rated light provides a focused 90-degree beam pattern that makes it ideal as either a clearance light or a side marker when properly mounted. It meets DOT requirements, giving you peace of mind that other drivers can clearly see your trailer from the front or rear angles where it matters most.
Built to Last: Durable Polycarbonate Construction
Made with a tough polycarbonate lens and housing, this mini marker light holds up under vibration, UV exposure, and repeated use. It’s compact at just 5/8" thick but tough enough for the long haul—backed by a lifetime warranty on the LEDs so you know it’s designed for years of reliable performance.
Specs
Dimensions
- Overall dimensions: 2-1/2" long x 1-1/16" wide x 5/8" thick
- Distance between mounting holes (center on center): 1-7/8"
Electrical
- Voltage: 12V DC electrical systems
- Power draw at 12.8V: 0.046 amps
- Wiring design: 2-wire (power lead and ground wire)
Lighting
- Diodes: 2
- Lens color: Amber
- LED color: White LEDs under amber lens
- Rating: P2 rated
- Compliance: DOT compliant
Construction
- Housing and lens material: Polycarbonate
- Mount type: Surface mount (hardware not included)
- Seal type: Sonically sealed, waterproof, submersible unit
Warranty
- LED warranty: Lifetime warranty on LEDs
MCL13A2B Optronics LED Mini Clearance or Side Marker Trailer Light - Submersible - 2 Diodes - Rectangular - Amber Lens - P2/P3 Rated
Alternate part number: MCL-13A2B
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Arrived Damaged
- Product did not meet expectations
- Wrong item was ordered
Ratings & Reviews
4.8
1371 reviews
by:
James E.
07/30/2025
This is the light to meet my needs, just wish it was part of a whole lighting kit.
by:
Mike
03/21/2026
I am rebuilding a 1986 enclosed trailer and these lights were a great replacement for the old ones . There bright and look great on the trailer I did all the orange and red ones . And being led it has a very low current draw . I am very with these and would recomend them
by:
Bob
10/11/2024
Optronics LED clearance lights were exact replacement for my 2008 camper. Fast shipping as usual. Super bright lights replacing the 16 year old original equipment.
by:
Russ
04/17/2016
The light looks good on my trailer I built to pull behind my motorcycle. I have used all led lights on the trailer for less draw on the bike. They are nice and bright in the day and night.
Russ
4/17/2017
After a year the lights are still working great. I have had a few people ask me where I got the lights and I let them know etrailer has them for a good price.
by:
Ben
09/05/2026
Works great , compact , ridged and bright
by:
Melinda
04/22/2026
Excellent equipment, excellent customer service
by:
Jason
05/14/2020
We use these lights here at Treeline Helicopters as indicator lights on our aerial tree saws, they are exactly as pictured and great quality, we’ve also used several heavy trailer products from etrailer and are very happy with the fast shipping and customer service!
by:
Nathan
04/08/2014
The light works great, and really makes my trailer more visible at night. Shipping was very fast and order was perfect.
by:
Jerome
02/23/2026
The lights look good on the front of the trailer.
by:
Tim
09/09/2025
I’ve just installed them on my boat trailer. The lights were pretty straightforward to install and work as they should.
I will definitely use etrailer for future projects.
I will definitely use etrailer for future projects.
by:
Dean
07/08/2026
Fit perfectly in chrome gromet and work great.
by:
jeremy
09/03/2024
These lights are nice and bright. They were wasy to install. And look great!
Jeremy
10/26/2025
Excellent product! One year later and still looks good and working great :
by:
Thomas
03/20/2026
they are great
by:
David from Wisconsin
08/28/2025
I have always the best results and products from E Trailer,, always delivers on time, I tell my friends with boat trailers E Trailer is the best to work with
by:
Dave L
03/24/2015
Excellent products and excellent service. I never have to wait to receive parts from the fine people at etrailer and the quality is always excellent. My latest purchase, two pair of side marker LEDs installed easily and work perfectly. Thanks etrailer!
Dave L.
3/30/2016
Thanks for asking. I havent had any problems with any of the products Ivereceived from eTrailer, ever. I have several trailers, all of them have someof your products on them and while I do check their operability before I geton the road with them, it is more about safety routine than concern thatIll have a problem.I think eTrailer is one of the best online stores period, I value yourbusiness and appreciate all of the excellent customer service you provide. Ispread the good word about eTrailer whenever I can. I appreciate yourfollow-up. It only reinforces my opinion that you all are tops in customerservice.Best Regards
by:
Richard
11/12/2022
These lights are exactly what I wanted to replace the existing marker lights on my boat trailer. I won't be able to mount them until the spring but I checked and they all work. I am happy to say they are much brighter than I expected and seem to be very well made. I would definitely order these again if needed.
Richard
11/13/2023
Update-These lights have worked out great on my boat trailer for the past year. I have had no issues with water getting in the lens. They are bright and look great. Simple to install. I have used Optronics lights before and have never had an issue. I would not hesitate to buy again.
by:
Richard
01/10/2026
Fit perfectly of what I needed
by:
Blued Steel
09/01/2025
Great upgrade to aging boat trailer
by:
David
09/16/2025
They work perfectly. Great customer service!
by:
Jeff G.
06/06/2016
Awesome front marker light. I have a 16ft inflatable boat that I take on the ocean several times a month during the summer. The boat sits low and I need to back the trailer deep for each launch. These front marker lights are always partially submerged every time. They are completely sealed and work perfectly. The lead wires are fairly long, but the connection to the boat trailer wiring is underwater on each launch. I just spent a little time covering each connection with Marine Sealant 4200 from 3M. My lighting is now completely waterproof.
by:
Timothy
08/03/2023
The wiring adapter connected properly to my truck's factory, wiring adapter for electric trailer brake controller. It also subsequently connected properly to the Tekonsha Brake EVN electric brake controller I also purchased from etrailer. Everything worked properly towing my trailer.
by:
A
03/14/2025
These small amber marker lights fit my old existing incandescent light trailer mounting holes perfectly!
by:
Bill Z
07/17/2018
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.
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.
by:
Dan
08/19/2024
Perfect fit
Dan
8/20/2025
very well
Gwendolyn Y.
8/20/2025
@Dan Happy to hear the light is still shinning bright, even if it's not a diamond.
by:
Randy
03/14/2019
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.
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view full answer... - Availability of Gasket for MCL13 LED LightsHey Trevor, welcome back! Yes, there is. You can use the Foam Gasket for MCL13 Series LED Lights # A13G2B with both the red # MCL13R2B and amber # MCL13A2B lights. The gasket installs behind the light and is designed to provide a weathertight seal, so it would be a great addition for mounting these on the exterior of your enclosed trailer. Are you replacing existing clearance lights on the trailer, or adding these in new locations?
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view full answer... - How To Connect A Front Clearance Light With Single Wire On a Motorhome With 2 Wire Connectors? It sounds like you are trying to replace a front clearance light on your 1996 Four Winds motorhome with a Optronics LED Clearance # MCL95AB which only has a single wire connection. This style of light uses the mounting bolt hole to act as the ground connection. But since your cap is going to be constructed of fiberglass you will need to use a Ring Terminal # DW05741-1 to connect the ground wire from your chassis. You might consider switching all your clearance lights to the Optronics LED...
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view full answer... - What is the Distance Between the Mounting Holes on Sealed, Mini LED Trailer Light # MCL13A2BThe center to center distance between the 2 mounting holes on the Sealed, Mini LED Side Marker, Clearance or Identification Light, 2 Wire, 2 Diode - Amber, # MCL13A2B, is 1-15/16 inches. You might also be interested in Snap-on, Polished Chrome Ring for MCL13 Series LED Lights, # A13C2B, or Foam Gasket for MCL13 Series LED Lights - Black, # A13G2B.
view full answer... - How Long is the Mounting Bolt on the Optronics LED Clearance Light # MCL95ABThe bolt on the back of the clearance light # MCL95AB is approximately 5/8 inches long from the back of the light housing to the end of the bolt. Not all bolts on lights equipped with them are the same length but they are generally within very close proximity, no more than 1/4 inch off, from the lights I have measured. The stud in this light is also the grounding point. Similar lights, like # MCL13A2B, would mount using 2 screws with gasket # A13G2B. This light has 2 wires so you would...
view full answer... - Does the Mounting Hardware Come with Optronics Trailer Side Marker/Clearance Light # MCL13A2BMounting hardware is not included with the Optronics side marker/clearance light # MCL13A2B. The type of hardware you use, screws, bolts, etc., does not matter but screws are most common because they are easy to work with. I have included a link to a video review of this light for you.
view full answer...
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Info for this part was:
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Written by:
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Bob
10/12/2025
After bedding with butyl tape and caulking exterior perimeter these lights are watertight and provide excellent illumination. As forward clearance lights on a truck camper these lights are subjected to harsh conditions at times. 1 year later no problems