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Optronics Mini Red LED Clearance or Side Marker Light - 2 Diodes - Red Lens - 12V
Optronics

Optronics Mini Red LED Clearance or Side Marker Light - 2 Diodes - Red Lens - 12V

Part Number: OPT35UB
In Stock
$7.84
Trailer Lights
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Replace a faded or broken trailer marker light with this compact red LED light. The sealed polycarbonate housing and lens stand up to wet roads, while the self-grounding design keeps installation simple. Great Prices for the best trailer lights from Optronics. Optronics Mini Red LED Clearance or Side Marker Light - 2 Diodes - Red Lens - 12V part number OPT35UB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (1329)
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Optronics Trailer Lights - OPT35UB

  • Clearance Lights
  • Oblong
  • LED Light
  • Red
  • 2-1/2L x 1-1/16W Inch
  • Marker
  • Non-Submersible Lights
  • Surface Mount
  • Optronics

Replace a faded or broken trailer marker light with this compact red LED light. The sealed polycarbonate housing and lens stand up to wet roads, while the self-grounding design keeps installation simple.


Highlights

  • Compact Trailer Visibility: Red LED marker light keeps your trailer visible without taking up much mounting space.
  • Simple One-Wire Install: Self-grounding design uses mounting hardware for ground connection.
  • Sealed Against Road Spray: Polycarbonate housing and lens keep water and grime away from the LEDs.
  • Low Wiring Load: LED design draws only 0.046 amps on your 12V trailer system.
  • Surface-Mount Replacement: Mounts with two #10 screws (sold separately) using 1-7/8" spacing.
  • Red Clearance or Marker Light: P2 and P3 rated light works for side marker or clearance applications.

Features to know about

Fits Tight Mounting Spots on Your Trailer

Smaller trailers, fenders, and utility builds don't leave much room for oversized marker lights. This compact oblong housing measures only 2-1/2" wide and mounts directly to your trailer surface, giving you clearance or side marker visibility without taking up extra space along the frame.

One-Wire Setup Speeds Up Installation

Running separate ground wires can slow down light replacement jobs, especially on older trailers with limited wiring access. This light grounds through the mounting hardware, so you only need the single hardwired power lead connected before securing it with two #10 screws (sold separately).

Sealed Housing Handles Wet Roads

Open or poorly sealed marker lights can collect moisture and road grime that shorten light life. The sealed polycarbonate housing and lens keep the internal LEDs protected during rain, spray, and routine trailer use, keeping your marker light visible through changing road conditions.

LED Design Reduces Strain on Trailer Wiring

Older trailer wiring systems can struggle when multiple incandescent lights add up across the circuit. This 12V LED light draws only 0.046 amps while still providing red marker visibility, leaving less load on your trailer wiring during nighttime towing.

Specs

Light Function:

  • Light type: Clearance or side marker light
  • Light color: Red
  • Lens color: Red
  • Diodes: 2
  • FMVSS rating: P2 and P3

Electrical:

  • Voltage: 12V DC
  • Amp draw: 0.046 amps
  • Connection type: Hardwired
  • Wire design: Single wire
  • Ground type: Self-grounding through mounting hardware

Construction:

  • Housing material: Polycarbonate
  • Lens material: Polycarbonate
  • Mount type: Surface mount
  • Mounting hardware: Two #10 screws, sold separately
  • Mounting-hole spacing: 1-7/8" center to center

Dimensions and Weight:

  • Overall dimensions: 2-1/2" wide x 1-1/16" tall x 11/16" deep
  • Shape: Oblong
  • Weight: 0.088 lbs

Warranty:

  • Lifetime LED warranty


MCL131R210B Optronics Mini Red LED Clearance or Side Marker Light - 2 Diodes - Red Lens - Surface Mount - Self-Grounding - 12V





Video of Optronics Mini Red LED Clearance or Side Marker Light - 2 Diodes - Red Lens - 12V
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 Review of Optronics Trailer Lights - Mini Red LED Clearance Side Marker Light - OPT35UB

Hi everybody, Andy here with etrailer. Let's take a quick look at this Optronics mini red LED clearance or side marker light. Now this is a compact red LED marker clearance light that's designed to improve trailer visibility without taking up too much space. And because it's small and surface mounted, it's gonna be a good option when you need visible safety light, but you're also don't have a whole lot of room on your trailer frame or body. So as you can see, I do have this connected. I'm trying to keep my alligator clips in check here.

I'm gonna go ahead and just shut my studio lights off here real quick, so you have a good idea of just how bright this is. Going back out to my wide view, you can kind of see from a distance what this looks like. Back to my closeup view, you can see that this has got two diodes in it, so two LEDs here, and this is going to draw very little power, so on your 12 volt system. So as you know, LEDs are very efficient, especially when compared to incandescent bulbs. So it's gonna take minimal demand on your trailer's electrical system.

Installation's gonna be pretty straightforward thanks to the one wire design. So let me go ahead and unhook this for my power supply and show this to you here. So this is gonna be a one wire self grounding design. So instead of running a separate ground wire, the light's gonna ground through the mounting hardware, which can help simplify wiring and reduce insulation time. So this light is built for trailer use.

This is a sealed polycarbonate housing and lens. It's gonna help protect the LEDs from water, road spray, dirt and other debris encountered while towing. For mounting, this is going to install on the surface of your trailer using two number 10 screws. Those screws are sold separately. You're getting exactly what you see here.

So no mounting hardware with this. Let me find my ruler here. Give the measurements of those mounting holes on center. So as I hope you can see we're 1-7/8" on center. So this is gonna be a convenient replacement for any existing marker lights with similar mounting patterns. Functionally, this is a red P2 and P3 rated light that can, that can be used as either a clearance light or a side marker light, giving you flexibility depending on your trailer's lighting needs. Let me leave you with some overall dimensions. At the width, we're looking at 2-1/2" at what I'm calling the height. The tallest point here about 1-1/16". And the depth, about 11/16 inches deep. Well, I think that's gonna wrap up our quick look today. I do hope that it was illuminating for you. Again, my name is Andy. Thank you for joining me.

Ratings & Reviews

4.8

1329 reviews
5 Stars
(1147)
4 Stars
(130)
3 Stars
(24)
2 Stars
(10)
1 Star
(18)
Review sort icon
Replace a faded or broken trailer marker light with this compact red LED light. The sealed polycarbonate housing and lens stand up to wet roads, while the self-grounding design keeps installation simple.

by:

These are bright and the adhesive backing sticks very well. I used a 23/64 drill bit for the mounting hole and the barbs on the rubber grommet helps keep the light from coming out along with the adhesive on the back.



by:

Quality service and good price!



by:

Fit perfectly in chrome gromet and work great.



by:

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.



by:

These are bright but not as bright as the amber color and the adhesive backing sticks very well. I used a 23/64 drill bit for the mounting hole and the barbs on the rubber grommet helps keep the light from coming out along with the adhesive on the back.



by:

The lights look good on the front of the trailer.



by:

They were the perfect replacement for the original lights that were on the trailer



by:

The lights are awesome. I used four of the amber and two red ones for clearance lights on a trailer that i built for a friend, along withe the clear lens tail and turn lights made for a hreat look. Very happy with etrailer and there service. I will reorder for my next project for sure. Thanks



by:

Excellent equipment, excellent customer service



by:

The LED marker lights were exactly what I was looking for. Installation was quick and easy. Great product. Great service.



by:

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.



by:

Great products. Exactly what we needed, and quick shipping. A+++ All around!!!!



by:

Exact replacements for my Featherlite Trailer thank you



by:

STL83RB I am missing mounting hardware.



by:

Phenomenal service and shipping!



by:

It is a perfect directive replacement for one that had burned out.



by:

The lights and fenders I purchased from etrailer.com were first rate just as described. This was a rehab of an older trailer with rusted fenders and rotted floor & sideboards. The pictures show an extra bracket installed on the top of the fenders. While this may not look perfect, it truly makes the fender a rugged reliable step for a full size adult.



by:

Lights look and work great! Easy instal lation.



by:

excellent quality and excellent service, product arrived in one business day



by:

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:

These lights are hard to find but Etrailer always have the trailer parts I need. These are a direct fit for my ATC.



by:

Perfect replacement for 2021 Grand Design Reflection 5th wheel marker lights.



by:

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:

This is the light to meet my needs, just wish it was part of a whole lighting kit.



by:

Fair price and fast shipping. Arrived today and have already installed on my RV.


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See what our Experts say about this Optronics Trailer Lights


Info for this part was:

Employee Wilson B
Edited by:
Wilson B
Employee Andy C
Installed by:
Andy C
Employee Dawn Z
Written by:
Dawn Z
Employee Kim H
Updated by:
Kim H

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