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LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Red Lens
Optronics

LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Red Lens

Part Number: MCL52RMB
In Stock
$16.33
Trailer Lights
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2-15/16" x 2-15/16" Round. Waterproof trailer light serves as either a side marker light or a clearance light. Durable polycarbonate housing and lens. Recessed mount with flange. Accepts 2-pin PL-10 plug. PC rated. Great Prices for the best trailer lights from Optronics. LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Red Lens part number MCL52RMB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - MCL52RMB

Highlights

  • Reliable In Any Weather: Sonically sealed, waterproof housing keeps water out so the light stays on.
  • One Light, Two Functions: Works as both a clearance and side marker light for flexible use.
  • Fewer Replacements Needed: LEDs last 50 times longer and use less power than incandescent bulbs.
  • Bright and Efficient: 5-diode LED design draws only 0.063 amps at 12.8V for strong visibility.
  • Durable Build: Polycarbonate housing with surface-mount LED board resists shock and vibration.
  • Wide Coverage: PC-rated beam provides 180° visibility for added safety on the road.

Features to know about

Brighter, Longer-Lasting Light with Less Power Draw: 5-Diode LED Design

Old incandescent bulbs can fade fast and drain more power than they should. This round LED clearance and side marker light uses five LEDs that shine bright while drawing only 0.063 amps at 12.8 volts. The light lasts up to 50 times longer than traditional bulbs, stays cool, and never needs a filament replaced. It’s a clean, efficient upgrade that keeps your trailer visible and reliable without extra strain on the electrical system.

No More Water Damage Worries: Sonically Sealed and Fully Submersible

Wet conditions can ruin traditional lights, but this one is built to take the abuse. The housing and lens are sonically sealed into a single waterproof unit, keeping moisture out even when submerged. Whether you’re hauling in heavy rain or backing down a boat ramp, the sealed design protects the LEDs and circuit board so the light stays dry and dependable.

Wide 180-Degree Coverage for Safer Visibility: PC-Rated Beam Pattern

Visibility matters most at night or in low light, and this light covers all angles. With its PC rating, it projects light 90 degrees to either side for a full 180-degree spread. When properly mounted, it serves as both a clearance light and side marker in one—helping other drivers see you from the front and sides so you stand out in traffic or on dark roads.

Built Tough for Long Service Life: Durable SMT Circuit and Polycarbonate Housing

Trailer lights take a beating from vibration and shock, but this one is engineered to handle it. The surface-mount technology (SMT) on the LED board improves heat distribution while making the circuit more resistant to bumps and moisture. The polycarbonate housing and acrylic lens add impact strength for long-term durability on the road or off it.

Clean Mounting and Secure Connection: Recessed Flange Mount with Weathertight Plug

Getting a tight, protected fit is simple with this recessed-mount design. The light sits neatly into the mounting surface using its integrated flange, giving a smooth finished look while keeping it secure. The included two-wire weathertight plug ensures a snug electrical connection that resists corrosion and helps keep everything sealed up tight.

Specs

Quantity

  • Quantity: 1 clearance/marker light

Dimensions

  • Dimensions: 2-15/16" tall x 2-15/16" wide x 15/16" deep

Technical diagram of Optronics MCL52 round LED clearance and side marker light showing product measurements and dimensions for installation reference.

Electrical

  • Diodes: 5
  • Power draw at 12.8 volts: 0.063 amps

MCL52RMB Optronics LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Flange Mount - Red Lens





Video of LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Red Lens
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultimate Overview of the LED Clearance or Side Marker Trailer Light

Speaker 1: Today we're taking a look at a Two-inch Round LED Clearance/Side Marker Light. This sonically sealed, waterproof LED light functions as a marker and/or clearance light for your trailer.It's an LED system. LEDs make great replacements for incandescent lights. They last longer, they burn brighter, and they're more efficient. With LEDs you don't have to worry about replacing bulbs and you don't have to worry about brittle filaments.The unit comes with the weather-tight connection plug, which is included. It connects to the appropriate connection points here on the back side of the light and then it offers a two-wire design.

So, the white wire's your ground. The black wire is your power wire.The unit features a red, polycarbonate lens and then a black housing that's very strong, very durable. Flange-mount design, so we have three mount holes. Mounting hardware not included. It is SAE and Department of Transportation compliant.

It's PC-rated.We're going to take a look at some of the measurements real quick and then we're going to hook it up to power, so you can see what it looks like with power running to it.The overall diameter of the unit measures about two and seven-eighths inches to two and fifteen-sixteenths inches. The lens area measures two inches and the area back here has a diameter measurement of two and three-sixteenths of an inch to two and a quarter.We're going to go and hook it up to power. Again, our white wire is our ground wire. And then our black wire is the power wire. This sends out a really nice, strong, consistent signal.

It's a very bright light. It's a five diode or five LED design, so the multi-diode design really helps optimize the overall light output.When it comes to the power draw at 12.8 volts, it's 0.063 amps. And Optronics puts a limited lifetime warrantee on the LEDs.That's going to do it for today's look at the Two-inch Round LED Clearance/Side Marker Light from Optronics.

Customer Satisfaction Score:

Ratings & Reviews

4.8

3107 reviews
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3 Stars
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2-15/16" x 2-15/16" Round. Waterproof trailer light serves as either a side marker light or a clearance light. Durable polycarbonate housing and lens. Recessed mount with flange. Accepts 2-pin PL-10 plug. PC rated.

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Perfect



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Quick delivery and what I wanted!
Thanks
for the service!



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great lights



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Perfect fit



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Service from eTrailer is top notch. Communication from eTrailer is best in class and they shipped my order out super fast!



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Good descriptions on the parts I need so I know it’s gonna fit when I get it. Fast shipping and great service…



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I use the LED trailer lights to replace some on my boat trailer and they were easy to disconnect and replace.



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Its was on time and descibed well, than ks



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The piece if mind knowing etrailer is available for myself boat trailer lighting needs is amazing. That team always meets my needs, even with a short-notice replacement need!



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My order was accurately described and shipped fast.thankyou



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Fast shipping fair price


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See what our Experts say about this Optronics Trailer Lights

  • Replacement Marker/Clearance Lights For a 2006 Ranger Trail Boat Trailer
    Unfortunately I have no insight on what Ranger Trailer put on their boat trailers in 2006. All I have to go off is images I could find which looks like they use the Amber # MCL52AB or # MCL52AMB and Red # MCL52RB or # MCL52RMB. The difference is the parts ending in MB have pigtail wires while the other lights use a plug in 2-pin connector. If you can send me some images of your lights and remove one of them to check the wiring we can help you determine the correct replacement.
    view full answer...
  • LED Clearance or Side Marker Trailer Light in Red
    For a complete set in red we have the Optronics LED Clearance or Side Marker Trailer Light - Submersible - 5 Diodes - Round - Red Lens item # MCL52RMB. If you are wanting an exact set up like the Optronics Miro-Flex LED Clearance or Side Marker Light w/ Grommet and Pigtail - Submersible - 3 Diodes - Amber item # MCL51CAK you referenced you will need the following parts: LED Clearance or Side Marker Trailer Light - Submersible - 3 Diodes - Round - Clear Lens item # MCL57RCB Right Angle...
    view full answer...

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Info for this part was:

Employee Cole B
Installed by:
Cole B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Manda E
Updated by:
Manda E
Employee Carrie F
Updated by:
Carrie F

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