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Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens

Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens

Item # MCL11AKB
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Optronics 1 Inch Diameter Trailer Lights - MCL11AKB
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3/4" Round. Waterproof mini trailer light with 2 amber LEDs functions as both a clearance light and a side marker light when properly mounted. Amber polycarbonate lens. Recessed mount with included black PVC grommet. 2-Wire pigtail. PC rated. Lowest Prices for the best trailer lights from Optronics. Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens part number MCL11AKB can be ordered online at or call 1-636-306-4830 for expert service.
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Optronics Trailer Lights - MCL11AKB

  • Clearance Lights
  • Round
  • LED Light
  • Amber
  • 1 Inch Diameter
  • Recessed Mount
  • Rear Clearance
  • Side Marker
  • Submersible Lights
  • Optronics

3/4" Round. Waterproof mini trailer light with 2 amber LEDs functions as both a clearance light and a side marker light when properly mounted. Amber polycarbonate lens. Recessed mount with included black PVC grommet. 2-Wire pigtail. PC rated.


  • Small, round trailer light functions as both a clearance light and a side marker light when properly mounted
  • Sealed, waterproof construction 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
  • Polycarbonate lens and housing
  • Amber lens with amber LEDs
  • Recessed mount with included black PVC grommet
    • Installation requires an 11/16" hole at desired location
  • 2-Wire pigtail - includes power lead and ground wire
  • DOT compliant
  • PC rated


  • Light dimensions: 3/4" diameter x 7/8" deep
  • Grommet diameter: 11/16"
  • Diodes: 2
  • Power draw at 12.8 volts: 0.03 amps
  • Lifetime warranty on LEDs

Optronics light dimensions

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 circuit board is sealed, which means that water will not damage the diodes or circuit board.

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and a side marker light.

MCL11AKB Optronics Uni-Lite Mini LED Side Marker/Clearance Trailer Taillight with Grommet - PC Rated - Amber

Alternate part number: MCL-11AKB

California residents: click here

Customer Reviews

Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens - MCL11AKB

Average Customer Rating:  4.9 out of 5 stars   (605 Customer Reviews)

3/4" Round. Waterproof mini trailer light with 2 amber LEDs functions as both a clearance light and a side marker light when properly mounted. Amber polycarbonate lens. Recessed mount with included black PVC grommet. 2-Wire pigtail. PC rated.


These were designed as a clearance light application and at a great price. I bought them to use as turn signal lamps on my RZR. They are high quality and extremely bright when lit, so they work great for both applications. These guys have great parts at a great price and quick shipping. I would recommend them to anyone needing trailer/boat/lighting. Thanks guys.

John, Are these lights clearly visible during the day time? I bought some that look similar but are not bright enough to be seen. Im also using them for turn signals on my RZR.
-- comment by: Lowell C - 03/12/2016
Lowell C. These lights are bright enough to be seen during daylight. I use them when I am with a group to signal our next direction or 4 way as intent to slow. Everyone behind me have been able to see them even in high dust situation.
-- comment by: John C - 03/15/2016
Still loving it. I installed them as turn signals on my 12 RZR. Every time I go out riding they are utilized and many have made comments on how well they look and can be seen.
John C - 04/21/2016


I installed these on my home built teardrop. Worked out very well. Total current draw is under 400 mA for all lights.


I actually purchased these lights to use as a side marker light on my Jeep Wranglers after installing after market fenders. Lights have worked fantastic up to this point

Thank you for following up. Your email caught me off guard as many companies dont follow up like this however, I truly do appreciate it and commend and of course you for the awesome customer service! As to the lights themselves, I can gladly say that they are continuing to perform exactly as I had expected they would.
Jobby J - 01/14/2018


I bought 6 of these lights to put on my jet ski trailer. 4 amber and 2 red. And they are very bright. I highly suggest putting these lights onto your fenders. I put an amber and a red one on each fender in their appropriate locations of course. It helps when backing up into small dimly lit spaces at a driveway The red ones reflect off of whatever you are backing towards...and the amber ones give you an idea how close you are to walls or trees in the side mirrors.

Just be cautious when you put them in. Make sure that in your mind everything is good to go (like, say, the wiring), and you do not need to pull it back out. If you push it in all the way...good luck getting it out. The grommet mushrooms out at the bottom basically locking it in place. If there was a warning about this on this site and I missed bad.

I just made sure I left them all loose until I was done, made sure the wires in the trailer (especially the ground wire) were not getting stretched or pinched, as my trailer is old, and then pressed them all in by hand. I made the mistake of pressing one into my passenger fender...just to see how it looked. This was before I started wiring anything. At this point I was drilling the 3/4" holes...which by the way is very time consuming. I spent a few minutes trying to remove it without damaging the wires. No luck. Not even a little did it want to budge. And I was able to get at it from the top and bottom. Thank goodness this didn't happen with the holes I put into the sides of the trailer because I think I may have had to destroy that light just to get it out and wire it up, which would have sucked because I think that would have pissed me off to the point of not even wanting to use the lights anymore and I would have picked something else out. And that would have been a shame because these lights put out an incredible amount of light.

When you put them in the first time, they give off a sort of weird glow. I thought my eyes were playing tricks on me at first.

If you manually adjust the lights to the proper DOT code or whatever, they look good. But, if you rotate them so that they are horizontal instead of vertical, they put out a ton of light towards the street. What I'm saying is...if you want to change it up, you can turn them all horizontal in a matter of seconds, and be lighting up the road...literally...just like the neon vehicle underbody kits of the 90's. Admit it. You thought they were cool too. Now, you can sort of have that, except it's legal.

I went overkill on my small trailer. At least I thought I did. Now, after using it at night, I am more than satisfied. What a huge difference these tiny lights make.


What a great idea. Follow up with customers to get feedback. That way you can tell if the products are still good or if they have limited lifespans. You get to see if people are still happy and get them thinking about your company again if theyre in the market for more trailer stuff.To answer your question, I do not have them anymore. I sold all of my gear, but do know they are still working. I really liked those small lights. They put out an incredible amount of light and were easy to install once I drilled holes into my old trailer.
Phil M - 08/21/2015


Added these lights on my motorcycle trailer, and they are perfect!


Extremely happy with customer service and all products I have purchased from etrailer.

100 working!!
Art G - 10/14/2017


They are low profile in the day, and very functional in the night with their brightness. I did not expect them to be this good. I wired them as marker lights for my rear fenders.


Great product, i put these lights on boat tralier for marker lights, much brighter than original ones


Fast accurate service as always. Very pleased with customer service.




Lights ate super bright easy to install and fit very tight in a 3/4 inch hole!! Very satisfied

Love these little Super bright lights, Put Amber on Front Air Damn Under Bumper
-- comment by: Glen D - 10/06/2013


Just installed recently, Lights mount nicely in a 3/4" hole. Wiring harness about 8 inches. Just as bright or brighter than standard size clearance light. They work and look great. I used them on the front of fender step mounted on a 45 angle . Not sure if they meet "reflector" requirements for corner light but works great as indicator to on-coming traffic (and width marker when looking in mirror) and side marker light. As far as reliability or longevity, don't know, but they appear to be well constructed and sealed lights.

So far theyve still been working well, they are very bright and while towing at night, they light up the yellow line on the highway nicely so I know exactly where my fender is and oncoming traffic can see. I added some yellow reflector tape next to the light so that it meets reflectivity requirements, but as a light, its much smaller, looks cleaner, and less prone to damage than a regular clearnace light
steve h - 02/10/2015


I purchased
MCL11AKB marker lights,
I was hoping for some bright lights that would be seen from a distance, wow the lights are real bright and can be seen a long ways away!! I installed these markers on our bull dozer, for night time use, so the machine can be seen from the side and can tell what direction it is facing, the Amber and red are easy to see from a long distance, great product, we are going to order these for all are night machines, thanks etrail er, great product!!!


Exactly what I was looking for and high quality perfect match to my existing led lights . Etrailer is the best place to purchase stuff for your trailer and towing needs . I have been a customer for years and will continue, great videos on there products and fast shipping. Highly recommend


Nice bright lights. I used for corner and fender marker lights on my car trailer. The grommet that comes with these is really stiff and is install once, then impossible to remove without damaging it. I welded short lengths of 1/2" pipe on my trailer where I installed these, ground a little plastic ridge off the OD of the lights and slid them into the pipe just leaving the tip of the light exposed.

Still working great, very small but bright great marker lights
Dan - 08/12/2020


I made steps to put in front of my trailer fenders and wanted some lights . I used 3 of the 1 in. amber lights and they put out lots of light . At night i have no problem seeing the of the road.

Great still working
karl S - 06/05/2016


Needed a replacement light for our travel trailer as a low branch broke this light on the front cap. Light was a little difficult to find but after some searching found it on etrailer. Order was processed and shipped the same day the order was placed and it arrived on time. It was a perfect replacement.


I actually used these for the front running lights on a 1963 dune buggy with limited clearance. They worked awesome, very pleased. Would buy again.


Very bright and easy to install.


Bought these for replacements of marker lights on a boat trailer. They fit into the predrilled holes perfectly just as the originals. Sealed the connections with heat shrink and liquid electrical tape. Now it is better than new. These lights are brighter than the trailer originals. Good product.


MCL11akb: Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens - MCL11AKB Purchased both the AMBER and RED. Very BRIGHT for such a small light. 2 LED, are better then another brand I purchased that had 1 LED that was supposed to be brighter then the 2, it Wasn't. I like this product, used the amber on the front of the truck, used the RED to highlight some spots on the rear of the trailer. High Quality Rubber Gromlet, solid construction, water proof. Which the wires came with connectors. For the money its' a solid purchase.


The first one I got was defective. They sent out another that works just fine. Four stars is for the product not They took care of the issue and I am happy with their service.

Product is still going strong after a year now.
Daniel - 06/03/2020


I put these lights on a UTV as turn signal markers. It made for an easy lighting kit.

They are still doing what they did last year. Since Im the drive, I dont get to see them function unless Im testing them.
Buster 5 - 03/14/2018


I installed these lights as front side marker lights on my boat trailer, and installed the red version as rear side marker lights. These lights are great! The only comment I have is that the recommended hole size of 11/16" for the grommet seemed to be a little tight. I ended up drilling 3/4" holes and the grommet and light seem to fit fine and very securely (I didn't have an 11/16" drill).


I really like these little marker LED lights. They are nice and bright and by rotating the housing you can somewhat adjust the beam pattern. I've used the yellow lights on the front apron of my F150 as marker lights and the red ones have been installed on the rear of my truck as running lights and also turn signals. I especially like that they are epoxy-sealed units and the wires have a rubberized sleeve for exterior use. I really wish that these lights would come in a dual intensity version so that they could be used as both running lights-turn signals or running lights-brake lights.

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