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Optronics Mini Side Marker and Clearance Light - Submersible - 3 Diodes - Clear Lens w/ Red LEDs
Optronics

Optronics Mini Side Marker and Clearance Light - Submersible - 3 Diodes - Clear Lens w/ Red LEDs

Part Number: MCL14CRGB
In Stock
$14.87
Retail:$16.50
You Save: 10%
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In Use/Installed

2-1/2" x 1-1/8" Oblong. Waterproof, LED trailer light serves as a clearance and side marker light when properly mounted. Durable polycarbonate housing and lens. Surface mount to trailer - hardware not included. 1-Wire design. PC rated. Great Prices for the best trailer lights from Optronics. Optronics Mini Side Marker and Clearance Light - Submersible - 3 Diodes - Clear Lens w/ Red LEDs part number MCL14CRGB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (665)
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  • Videos (1)
  • Photos

Optronics Trailer Lights - MCL14CRGB

Highlights

  • Bright, Efficient LEDs: Three red diodes shine clearly while drawing only 0.06 amps at 12.8V.
  • Reliable In Any Weather: Sonically sealed, waterproof housing keeps water out even when submerged.
  • Compact Visibility: 2-1/2" x 1-1/8" oblong design fits tight spots for side or clearance marking.
  • One Light, Two Functions: PC rating gives 180° coverage for both clearance and side marker use.
  • Simple Surface Mount: Installs flat with one-wire ground through mounting hardware.
  • Long-Lasting Build: Polycarbonate lens and housing protect LEDs that last 50 times longer.

Features to know about

Brighter and More Efficient Lighting: 3-Diode Red LED Output

This mini LED clearance and side marker light puts out a bright red glow through a clear lens using 3 durable diodes. Compared to old incandescent bulbs, these LEDs run cooler, draw less power, and last up to 50 times longer—so you get strong visibility without worrying about changing bulbs. At 12.8V, the power draw is just 0.06 amps, keeping your electrical load light and efficient.

Protection Against Water Damage: Sonically Sealed, Waterproof Build

If your trailer ever deals with rain, spray, or submersion, this light is built to handle it. The polycarbonate housing and lens are sonically sealed into one solid piece that keeps water out and protects the diodes and circuit board. That waterproof design makes it a dependable choice even for trailers that see the boat ramp or wet roads.

Wide Visibility for Safer Driving: PC-Rated 180-Degree Coverage

Visibility matters when you’re on the road. As a PC-rated light, it shines at a 90-degree angle to either side of its centerline—covering a full 180 degrees. When properly mounted, it doubles as both a clearance and a side marker light, making your trailer easy to see from the front or side at night and in low-light conditions.

Simple Installation Anywhere: Compact Surface-Mount Design

The oblong 2-1/2" x 1-1/8" shape makes it easy to mount this light just about anywhere you need extra visibility. It surface mounts flat against the trailer using two holes spaced 1-3/4" apart (hardware not included). The single-wire setup grounds through the mounting hardware for a clean, simple connection that doesn’t take up space or time.

Specs

Dimensions

  • Length: 2-1/2"
  • Height: 1-1/8"
  • Thickness: 5/8"
  • Distance between mounting holes (center on center): 1-3/4"

Dimensional diagram of the Optronics MCL14CRGB LED mini clearance and side marker light showing measurements and mounting hole spacing.

Electrical

  • Power draw at 12.8V: 0.06 amps
  • Voltage: 12V DC systems
  • Diodes: 3

Warranty

  • Lifetime warranty: on LEDs

MCL14CRGB Optronics Oblong Mini Trailer Side Marker and Clearance Light - Submersible - 3 Diodes - Clear Lens w/ Red LEDs - Surface Mount - PC Rated





Video of Optronics Mini Side Marker and Clearance Light - Submersible - 3 Diodes - Clear Lens w/ Red LEDs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultimate Overview of the Optronics Mini Side Marker and Clearance Light

Hello neighbors. It's Brad here at etrailer. And today we're taking a look and installing the Optronics mini LED side marker and clearance lights in red. Now these are also submersible so they're gonna be great applications for a boat trailer or whatever trailer you may have. Now these are gonna be a great addition or replacement or even upgrade for your trailer side marker and clearance lights. They're gonna be a three diode LED light.

So as your incandescent bulbs burn out and just kind of get old and crusty over time, this is gonna be a great time to upgrade your lighting source. Not only for longer lifespan, better light, but also better overall durability. Now when not illuminated it's going to be a completely clear housing. So it gives it a nice little modern look and it's also a polycarbonate lens and housing. So it's gonna be impact resistant and just hold up over time.

Now something else that's great, the fact that it is all sealed means that you can submerse it. So if this is underwater, that's gonna be totally fine. So holding up to the elements should be no problem for this. Now the three LED diodes give 180 degrees which is gonna be really nice because this is gonna be the furthest point of our trailer that sticks out. So for clearance, when driving at night, the driver of the vehicle is gonna be able to still see this and know exactly how wide their trailer is.

Now as far as installation goes it's also extremely easy to do. It does not come with the hardware. So you are gonna have to source some of that. If your previous lights don't have that hardware for you but it's gonna be a one wire installation and that's accomplished by having the ground integrated into the mounting. So all you have to do is tie into your trailer marker lights, and you'll be ready to go.

Now these are gonna be a great addition upgrade or replacement for existing clearance lights on your trailer and the red light you want behind the rear axle and towards the rear of the trailer. And this is gonna be great for letting us know exactly how far or wide the trailer is. That way you can kind of get a grasp of where you're at driving as you're going down, nighttime you can actually see how wide the trailer is to keep it off the side of the road. Ours here has seen obviously better days. So to put this new one on it's not only gonna give us a better light but also it's just going to have a working light. So in order to get this replaced, first you're gonna want to take off your old one or if you're putting a new one on you're gonna want to use these holes to line this up to be able to mount it up. Now you'll see that one side is completely open and then the other side actually has the ground, and that's pretty much a really nice addition because it's one wire installation. And then this portion will sit against the metal giving us our ground. So we only have to run one wire but to get this mounted up, you're gonna want to use this side to make a small indentation, either mark it with a pencil, you can use a punch or even just a small screwdriver to kind of create a marking there. And then once you have that spot instead of using this metal ground portion and potentially catching this, I recommend flipping it. And that way it'll be nice and even, and you can drill that. So once you have those holes enlarged I found that a 5/32 drill bit is gonna work well. You're also gonna want to drill a hole for the wire and it does sit a little bit higher than these two holes. So just go ahead and make that mark. Now once you have those drilled through you're also gonna wanna make sure that you have a nice spot for your ground to sit and get a proper contact. So if it is rust and corroded like this trailer is, go ahead you can sand that down with a little sandpaper and just get a nice clean surface. Now it does not come with hardware so you are gonna have to use your own. And what I've found is using an 8/32 here we have a stainless steel screw and that's gonna be good to hold up to the elements over time. This is completely submersible, and it's gonna hold up. So might as well make sure your hardware does the same thing. And I've gone ahead, just put a flat washer here and that's gonna just give it a little bit, it'll space out some of that pressure of the head on this plastic which you know, just added protection here. So I'm gonna go ahead and get our hardware passed through and on the backside, I'm gonna make sure that I follow it up with a flat washer, a split washer, and then finally a nut. Now if you are drilling in make sure that you don't have any wiring behind here before making your holes. Now we'll get this tightened down. You don't want to over tighten it as to break the plastic but you do want this to kind of snug up nice and flush against the frame and that way there's no moisture that can kinda get behind there. Now as far as wiring up, super easy, we already have our ground because it's integrated into this. So our red wire here is gonna attach to our running light wire which is generally gonna be your brown. So trace that back from your taillights or up front. And I've ran just an extra wire here. I just use a heat shrink butt connector and I'll be using one of those here as well to make our connection. So what I'll do here is just go ahead make sure it's cut the size where we need it and then strip this portion back. Now the heat shrink butt connectors are a great option for wiring that lives kind of out in the elements, because once you crimp it down and heat it up, it's gonna seal everything up and that way moisture can't get in there and break down your connection. Now if you need some of these, we have 'em available here at etrailer. So this brown wire that I have just jumpers back to our brown running light circuit. So if you need to tie into that again, you can use a heat shrink butt connector for that. And that way you just have a little jumper. You don't have to have this wire extend it. You can go ahead and just have an extension already there. So now that it's nice and crimped, we'll go ahead with our heat gun. And then as we put heat to it, you're gonna start to see it'll shrink down, creating that nice seal for us. Now all that's really left to do is test to make sure that that it's working, which as we can tell, we're getting some nice bright light here through the three diodes and then whatever wiring you have hanging down you're gonna want to tie that up. So it doesn't get caught. It's kind of nice too, to actually run it through some wire loom, just to kind of clean that up. And then you can actually use loom clamps to attach that if it is still hanging down we have that all available here at etrailer and that's just gonna make sure that you're wiring it will withstand all the elements that it's gonna see underneath the trailer. And that was a look and installation of the Optronics mini LED side marker and clearance lights in red with three diodes..

Customer Satisfaction Score:

Ratings & Reviews

4.8

665 reviews
Review sort icon
2-1/2" x 1-1/8" Oblong. Waterproof, LED trailer light serves as a clearance and side marker light when properly mounted. Durable polycarbonate housing and lens. Surface mount to trailer - hardware not included. 1-Wire design. PC rated.

by:

Perfect fit replacement. Delivered quickly at a great price. Easy install and safely back on the road.



by:

I purchased this light to replace a cargo trailer light. It isn't a exact match but pretty close. It gets the job done and unless you know the light is different no one will know. Light looks the same as the original.



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LED license plate light really lights things up



by:

Were a perfect match for the clearance lights on my 2015 American Hauler trailer.



by:

The customer service was spot on.
I would
recommend this product as well as recommend ordering other products from etrailer.com.



by:

So far this license plate light has worked flawlessly! The only reason I didn't give it 5 stars was that I thought the original light (same or very similar light) would last "forever" considering how much we use the trailer. In any case, this light thoroughly illuminates the license plate, so it's easy to see for the toll cameras in our area! I really appreciate the support and products that etrailer supplies. The other lights on my trailer (tail, turn, brake, clearance) have worked great, as long as I maintain a good ground connection on the wiring! I recently had a problem with intermittent lights (blinking on and off), that I eventually traced to a bad ground wire INSIDE the trailer-side wiring connection. I replaced the trailer-side connection, re-spliced the other wires, and wired everything through a weatherproof junction box that I bolted (drilled and tapped) to the side of the trailer tongue. The new ground wire is fastened securely to one of the threaded/bolted connections and seems to be working well so far. I used wired nuts to connect the other wires inside the weatherproof box, so it will be easy to replace connectors if they fail in the future.



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Fast and easy install. Nice and bright



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Exactly what I wanted.very bright the quality Is excellent.
Matches my other lights perfectly



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Exact match to factory installed lights….. Works great



by:

Works great, easy to install, still working .

John profile picture

John

3/24/2025

Still working great and an additional 15k miles

Jameson C. profile picture
Etrailer Expert

Jameson C.

3/24/2025

@John Nice! Did you have incandescent lights before?


by:

Fit perfect on our trailer



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Exact replacement for the original ligh t.



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The right part delivers on time



by:

The replacement lights are exactly the same as original. Other online offerings were similar but would have required modification. Pricing was competitive as well.


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See what our Experts say about this Optronics Trailer Lights

  • Clearance and Side Marker Light With Clear Lens and Red LEDs
    We do carry a number of options for clearance lights that have a clear lens and red LEDs, but the red equivalent of the Thinline LED Mini Clearance and Side Marker Light - Clear Lens - Amber # AL91CAB has a red lens as opposed to a clear lens; it is the Thinline LED Clearance and Side Marker Light # AL91RB. If you want to go this route you can mount it with Grommet # A91GB (recessed mount) or Mounting Bracket # A91BOB (surface mount) with Right Angle 2-Wire Pigtail # A46PB. For similar...
    view full answer...

Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Installed by:
Kathleen M
Employee Bradley B
Installed by:
Bradley B
Employee Dustin K
Video by:
Dustin K
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

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