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Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 Diodes - Amber Lens

Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 Diodes - Amber Lens

Item # MCL46AB
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MCL46AB - Rectangle Optronics Trailer Lights
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4-1/16" x 2-1/8" Rectangle. LED trailer light functions as a clearance or side marker light. Unique double bullseye design. Durable polycarbonate housing and lens. Surface mount - hardware not included. 2-Wire design. PC-rated. Lowest Prices for the best trailer lights from Optronics. Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 Diodes - Amber Lens part number MCL46AB can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (207)
  • Q & A (1)
  • Videos (2)
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  • Why etrailer?

Optronics Trailer Lights - MCL46AB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • 4L x 2W Inch
  • Surface Mount
  • Rear Clearance
  • Side Marker
  • Non-Submersible Lights
  • Optronics

4-1/16" x 2-1/8" Rectangle. LED trailer light functions as a clearance or side marker light. Unique double bullseye design. Durable polycarbonate housing and lens. Surface mount - hardware not included. 2-Wire design. PC-rated.


  • LED trailer light functions as both a clearance light and a side marker light when properly mounted
  • Unique double bullseye design
  • 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 snap-on lens and housing
  • Amber lens over amber LEDs
  • Surface mount - hardware not included
  • 2-Wire design includes power lead and ground wire
  • PC rated


  • Overall dimensions: 4-1/16" long x 2-1/8" wide x 1-1/8" deep
  • Distance between mounting holes (center on center): 3"
  • Diodes: 10
  • Power draw at 12.8V: 0.087 amps
  • Lifetime warranty on LEDs

Optronics LED Double Bullseye LED Clearance or Side Marker Diagram

Surface-Mount Light

Surface mount light

Surface-mount lights install flat against the surface of the trailer, so a hole does not need to be cut into the trailer for the light. This type of light is installed using a flange or bracket that has mounting holes. And mounting hardware is used to secure the light to the trailer.

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.

MCL46AB Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 LEDs - Amber Lens - 2-Wire

Alternate part number: MCL-46AB

California residents: click here

Video of Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 Diodes - Amber Lens

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

Video Transcript for Optronics Double Bullseye LED Trailer Clearance and Side Marker Light Installation

Speaker 1: Today we're going to be taking a look at the Optronics Double Bull's-eye LED trailer clearance and side marker light. Featuring the amber lens. The part number is MCL46AB. Now here's what our light's going to look like installed. As you can see the LED versus incandescent gives you a really nice bright and clean light. It certainly looks better on trailers.

You'll see more and more of those going down the road. They have a really nice unique Look. We have five LED's behind each double bull's-eye. So this light is going to work out really well for, when mounted on a 45 here. To provide you your clearance and side marker lights.

So there's no need for an additional light or additional reflector. This can also be mounted just to the side of the trailer or to the front of the trailer, to give you your light requirements there as well. There are going to be a lot of different reasons people replace lights. Typically they'll kind of get old. They'll get corroded and they just won't function properly.

A lot of times when replacing them, people upgrade to the LED's. This wat they last much much longer, and they use a lot less power. So if we had ten of these lights on this trailer and ten incandescent lights, the incandescent lights are going to draw a lot more power through your vehicle system.So it's nice the LED's give us all that nice bright clean light, but don't use a whole bunch of power to do it. Now like most lights in this category, it's going to be about four and one sixteenth wide. It's going to be about two and an eighth high.

And it's going to come off the surface of the trailer by about an inch and an eighth, to the top of the lens here. So to begin your installation you need to remove your old light and its base. And just hang on to your hardware. Typically you're just going to reuse that. Behind it, using a two wire kit like what we've got, we should have two wires. Typically when we're going to something that's not conductive. So this is a fiberglass corner, we have to have a ground wire. If you just have a single wire setup on your light, maybe this is made of an aluminum or steel. Well then you can ground out the ring terminal right to the stud, that you secure the light with. In our case we're going to use both wires, and connect it. You can see the ring terminal that comes on that light. We're just going to clip that off, and we can strip back the end of that wire. And then to the end of each one, we're going to add on part number DW 05744.That's going to be our heat shrink butt connector. Now standard butt connectors also work in this situation, we just found with heat shrinks, you really get a superior connection and you never have to worry about moisture getting in there and causing corrosion. Get those added there. Strip back both of our wires here. Now your signal wire, whatever turns on your running or clearance lights, is going to go to the black wire. And the white's going to go to the white. Now, the white in our case is ground, so you want to test yours and make sure. We've got it connected, so we're just going to heat up part of that butt connector. It's going to turn clear, it'll start to shrink down. And when it's fully shrank it looks like the wire kind of gets bigger, it almost magnifies the wire. And there will be a little bit of that clear gel that comes out of the end there.With our connections made, we're just going to pop the lens off of our light. Slide our wires back in. And we'll get it replace using our hardware. Now this light does have a pretty thick base to it. You can see. Most trailer hardware will start like that. See it's just not long enough. So we're going to use something just a little bit longer. This is a three quarter inch self tapper, so at minimum I think an inch and a quarter. Get those placed in there. And we'll get our light secure. Once we've got that secured, just take our lens, place it over, and push firmly to get it clipped into place. Now to test it out, you can use a trailer tester, turn on the running lights, or plug it into your vehicle and turn on the running lights. And it should work great. And that's going to complete our look at the Optronics Double Bull's-eye LED trailer clearance and side marker light. Part number is MCL46AB.

Customer Reviews

Optronics Double Bullseye LED Trailer Clearance or Side Marker Light - 10 Diodes - Amber Lens - MCL46AB

Average Customer Rating:  4.8 out of 5 stars   (207 Customer Reviews)

4-1/16" x 2-1/8" Rectangle. LED trailer light functions as a clearance or side marker light. Unique double bullseye design. Durable polycarbonate housing and lens. Surface mount - hardware not included. 2-Wire design. PC-rated.


The only reason I gave 4 stars, some of the lights I received were LED and some incandescent by mistake. etrailer promptly sent out the correct marker lights. I finished wiring the trailer and they look great.


This marker light was extremely hard to find locally. Each supplier only had it in the red color and I needed the whole unit not just a replacement cover. I finally found this online at etrailer.com and it was worth the slightly extra cost because I had already wasted three different trips to stores trying to track it down. This was convenient and it was exactly what I needed and it was installed right away by my husband. This company made it very easy!


I hard wired the grounds on these lights (MCL46RB and MCL46AB) and the trailer owner has enjoyed very good results. The trailer is used in the Lake Erie snow (salt) belt and with attention to detail in wiring, the lights are reliable, pretty rugged, and are very visible from a wide range.


Quality item, not the cheap china junk. Circuit board is epoxied, room in rear for wires if mounting flush on solid surface.


Great product but even better customer service. etrailer is now my go to spot for all my trailer needs.


Good, bright LED light at a reasonable cost, best for a somewhat protected location.

Really like these light very much. Very reliable and a great improvement from the incandescent lights they replaced. I would recommend using a wired ground vs. ring terminals to frame for a lifetime of trouble free operation.
Jim - 05/02/2017


Good quality, fast shipping, great pricing. etrailer is great to work with.


Fast shipping, product is great. Had a cracked lense on one of the lights and they sent one out as soon as I emailed them about it. Thanks. Will buy again from etrailer.com


Awesome. Service is great. etrailer really knows what it takes to get and keep customers for life. I will only buy from them from now on for all my truck and trailer needs!!


Still working great one year later.


The lightning i purchased looks great , dependable & bright!


These have 5 LEDs on the top and 5 on the bottom -- or 5 on the right and 5 on the left, depending upon their orientation ;-) So a total of 10 LEDs. Bright and visible from the sides, too. Easy, two-wire hook-up. Works great!


Easy to install look good and bright, just installed so no idea of their longevity

Still work great
Shawn - 08/04/2016


I am pleased with my purchase and the service provided by etrailer.


I enjoy shopping at etrailer great prices and awesome service.


Product as described. Exceptional ordering and shipping


Great purchase, excellent quality. You always out perform.


After trying in vain to revive the old incandescent marker lights on our 1991 Prowler trailer, we are delighted with these new LED ones. The old ones were so corroded that even new bulbs didn't help. The new LED ones are so much brighter and well sealed from the weather. And at a great price too!!! Thanks.


Exactly perfect replacement.


Great lights Have worked flawless


good lights on trailorat a good price.




Review from a similar Bullseye in Trailer Lights

Fast deliver, high quality product, separate grounding not needed. I replace the broken units on the trailer in minutes,


Review from a similar Bullseye in Trailer Lights

Replacing incandescent marker/ clearance lights with LED. These items were easy to find on the website, the order process was smooth, shipping was quick, and install super easy. As long as they last as they should this is a no brainer. First time using etrailer.com, definitely won’t be my last!

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

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    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
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Info for this part was:

Employee Patrick B
Video Edited:
Patrick B
Employee Chris R
Video Edited:
Chris R
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Zach D
Video by:
Zach D

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