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

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

Item # MCL11CAKB
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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. Clear 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 - Clear Lens - Amber part number MCL11CAKB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (495)
  • Q & A (12)
  • Videos (1)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL11CAKB

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

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. Clear 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
  • Durable polycarbonate lens and housing
  • Clear lens with amber LEDs
  • Compatible with 12V DC systems
  • 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 12.8V: 0.03 amps
  • Lifetime warranty on LEDs

Optronics MCL11 Series Uni-Lite LED Marker Clearance 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.

MCL11CAKB Optronics Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Clear Lens with Amber LEDs - PC Rated

Alternate part number: MCL-11CAKB

California residents: click here

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

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 - MCL11CAKB Review

Today we're reviewing part number MCL11CAKB from Optronics. This is a Uni-Light mini LED side marker and clearance light with a recessed grommet mount, as you can see here. So all you have to do is slide the grommet over the wire and under the light, and then push the light in and it's nice and snug. And then you push the grommet into the hole that's required for installation. The hole should be 11/16". The diameter of the part is 3/4", so it's going to be a nice, snug fit.

This is waterproof. It's sealed. And the LEDs, of course, are going to last thousands of hours longer than incandescent bulbs. Plus, you have no filaments to burn out and no bulbs to replace. You have an amber light with crystal clear lens, and a 2-wire design.

White is your ground wire. Black is your 12-volt, or lead wire. Now I'm going to connect these wires to our portable power source. We'll do the ground wire first, and then the 12-volt or lead wire. Remember that your ground wire has to be installed on a clean, unpainted metal surface.

Okay Now we're going to turn off our overhead light, and I'll show you how this shines. So as you can see, the LEDs themselves are amber, but the lens over them is clear. Okay, now we can turn on our overhead lights again. And I've disconnected these. This light is PC rated when it's mounted properly at a 45-degree angle.

Then it will serve as both a clearance and a side marker light when it is mounted at the 45-degree angle. It complies with all requirements of the Department of Transportation, and it comes with a lifetime warranty on the LED. And there you have it for part number MCL11CAKB, from Optronics, the Uni-Light mini LED side marker clearance light, with a recessed grommet mount and a clear lens over amber LEDs. .

Customer Reviews

Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Clear Lens - Amber - MCL11CAKB

Average Customer Rating:  4.9 out of 5 stars   (495 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. Clear polycarbonate lens. Recessed mount with included black PVC grommet. 2-Wire pigtail. PC rated.


Great service. Product was just as expected. Install looks excellent on the front of my truck. 104547

Do these lights match the Ford 150 Orange running lights? Im looking to do the same thing with the lights like you did. Thanks for any input
-- comment by: mark p - 04/15/2014

Yes, these do match the OE orange marker lights. The color is just about identical in my opinion. I was going for a very clean look and these worked great. I have a few additional pics on the following forum if you are interested.
-- comment by: Dave - 04/16/2014



Great little running light puck! Easy to install and very bright at night and is even very visible in daylight. Only about an inch in diameter on the outside, you wouldn't think it was much larger from the amount of light they provide. 734749


Great lights! Nice and bright. Had them on the truck for a year now and no issues. 732978


I have purchased lights from etrailer several times and the service and quality have been great. I have purchased lights for my truck and also have used there submersible lights for my boat trailer. lights have been in service for over a year and still bright as the first day I installed them. 714667


Product is awesome holding up well. Son and I are building another trailer will definitely buy these again. 610389


Another great transaction and great product from Etrailer. Ordering from you guys has always been hassle free. I'll always be a returning customer because of it. 603978


I got the order thank you very much, it just took longer than I expected no worries. I like the products thank you. 599133


Good lights will buy more. 591156

great product will buy again when needed.
Marvin - 01/27/2020



I am familiar with the lights that I previously purchased elsewhere. I then found your website and the lights were a better price. Your website was easy to navigate and the free shipping was a plus for me. Great customer service! 588922


installed them on my running boards. 1 year later they are still performing great. 571059


Good product, has side led as well to see 180 degrees. Has lasted a year so far. I find a lot dont last 3-6 months esp in Indiana winters! 539946


My customer requested an extended light to keep track of battery voltage. I interfaced the Uni-Lite LED to our LCD-HV Low Battery Alarm and when the voltage dropped at the set point the light came on this was a great warning of low voltage. The light was extra bright and can be seen from a good distant. Very happy with the results of brightness and ease of connections. 528577


Great light, bought 4 lights to put on air dam in front , very bright, all 4 lights still working 497629


Fast shipping exactly what I ordered. I would definitely recommend them. 470831


great product 470114


Great LED lights. Very bright ! 427576


Perfect replacement. Exactly what I was looking for. Thanks etrailer. 400293


Great product. great visabilty night or day. 365520


have been using them for a year, they work great and look good too. Easy to install and wire up!! 361154


Perfect replacement part. Had to change my order. Was quickly handled by customer service. Thanks!!!! 336534


Great product. Super fast shipping! 333435


I have purchased several items from etrailer and recommend all of them and the folks at etrailer. Items purchased by part #: 9653P; BK-70BB; 2118-605-04; 98174LED; PK12706; MCL11AKB; H20046. Shipped well packaged. All items are accurately described and are fully functional. etrailer videos are a big help and their staff is knowledgeable! 333089


I replaced all oem lights on my boat trailer with LED's, easy to install and still burning bright today. 325249


Great! Easy install, bright, and added the perfect marker light to the fenders of my trailer. 285413


Nice , good product ! 283688

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Isolating Turn Signal and Running Light for Small LED Side Marker and Signal
    The Vehicle to Vehicle Tail Light Converter # 118158 is not compatible with LED lights. Instead use # C56196 to separate the stop light from the turn signal for LED applications. The running/clearance light will bypass this converter. To get the turn and clearance light for the side of your trailer, the smallest LED is the Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Amber Lens # MCL11AKB. I've linked an article to lighting info and regulations...
    view full answer...
  • Availability of LED Back-Up Lamp for 2-1/2 Inch Rough Opening
    If you can very slightly enlarge the hole so it's 2-5/16 inches in diameter, I have a grommet mount lamp that will work great for you. The # UCL50CB LED lamp would use the # A54GB grommet and the # A46PB wiring pigtail. The lamp isn't considered a back-up lamp, but unless the vehicle in question is a commercial vehicle that's subject to DOT inspections, it'll work great for you.
    view full answer...
  • Clearance Light with Turning Signal Function for Running Boards
    I do have a solution for you but there is no way to wire the Uni-Lite LED Clearance and Side Marker Light w Grommet # MCL11CAKB so that it stays on with your clearance lights but then also acts as a turn signal when your headlights are on. You can connect it to both functions and use a single park diode like part # RM-690 but you would only see the turn signal when your headlights are off. For your application the only option we have available is the GloLight Uni-Lite LED Clearance or...
    view full answer...
  • Wiring Uni-Lite Mini LED Side Marker/Clearance Lights as Turn Signals Only on a Trailer
    The only issue you are going to have with using the Uni-Lite Mini LED Side Marker/Clearance Light # MCL11CAKB is that on a trailer, the brake lights and turn signals are combined on the same circuit. So when you step on the brakes these lights will light up as well. In order to prevent that from happening you will need to use a special converter to separate out the brake light and turn signals. You would split off the turn signal and brake wire to go to each new light. You would...
    view full answer...
  • Length of Wire Leads on Optronics Uni-Lite Mini LED Side Marker/Clearance Light # MCL11CAKB
    I pulled one of the # MCL11CAKB lamps from the warehouse and measured the wire leads for you. The distance from the rear of the lamp to the tip of the wires is exactly 7-1/2 inches.
    view full answer...
  • Troubleshooting Optronics Uni-Lite LED Clearance and Side Marker Light Not Coming On with Aux Switch
    I recommend double checking your wiring for the lights. A load resistor will not be needed since the # MCL11CAKB lights are not blinking. A load resistor is designed for use when an LED is hyperflashing when used as a turn signal. You will want to run a wire from the positive terminal on the vehicle battery to the auxiliary switch, then from the switch to the first light, from the first light to the second lights, so on and so forth. The easiest way to connect all of the lights to a...
    view full answer...
  • Can a Dimmer be Put on Uni-Lite Mini LED Side Marker/Clearance Light # MCL11CAKB
    LED lights use such little power, 0.047 amps for # MCL11CAKB, that it might be difficult to be able to put a dimmer of any kind on it. If you can find a dimmer that works at the milliamp level then it could work. This light can be used as a clearance light, as can the red version # MCL11RKB but they are not DOT approved as trailer brake lights.
    view full answer...
  • Will Uni-Lite Mini LED Light Work On Motorcycle As Turn Signal
    You should have no problem using the Uni-Lite Mini LED Side Marker/Clearance Light, part # MCL11CAKB, on your motorcycle. You will need to locate the wire that leads to your existing turn signals. Then make sure you attach the white wire to a bare metal surface for the ground. All you need to do then is attach the black wire to the power wire that is going to your existing turn signals and you should be ready to go. I have attached a product review video for this light you can...
    view full answer...
  • Wiring Optronics Uni-Lite Clearance Lights on a Motorcycle for Additional Turn Signals
    You can tap the power wire from the Uni-Lite, # MCL11CAKB, to the factory turn signal wire but you will still need to ground the light as well. You can try using an existing ground for another light but in the event that does not work you will need to ground the light to the metal frame.
    view full answer...
  • Wiring for Clearance and Turn Signal Functions with Clear Lens 2 Wire LED Light
    The GloLight Uni-Lite LED Clearance or Side Marker Light with Grommet - Turn - Round - Amber Lens # MCL121AK9PVG will work as both a clearance light as well as a turn signal. The Uni-Lite LED Clearance and Side Marker Light w Grommet - Submersible - 2 Diodes - Clear Lens - Amber # MCL11CAKB you pointed out is the closest to that light with the dual function in a clear lens. We unfortunately do not have the 3 wire light with the clear lens you are seeking. To get the features you...
    view full answer...
  • Availability of a Small Round Trailer Clearance Light with a Clear Lens and Amber Light
    We do have a light that is a very close match to # MCL11AKB except with a clear lens and amber light. Take a look at the Sealed, Uni-Lite Mini LED Side Marker/Clearance Light, # MCL11CAKB. This light is just a little larger than the one you referenced but does have a clear lens and amber light.
    view full answer...
  • Clear Submersible LED Trailer Light Recommendation
    For a similar LED light as the CIPA EVO light part # CM93236 that you referenced that is submersible and would be great for a boat trailer I would recommend the Uni-Lite Mini LED Side Marker/Clearance Light w/ Grommet part # MCL11CAKB. This is flush mount light. Another option that is a surface mount would be the Sealed, Mini LED Marker, Clearance or Identification Light # MCL13CR2B. The # CM93236 is designed to fit into a vehicle bulb socket, so not only would it not be submersible...
    view full answer...

Do you have a question about this Trailer Light?

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jeffrey L
Written by:
Tyler C
Video by:
Kathleen M
Installed by:
Cole B
Updated by:
Amy B
Updated by:
Brian T

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