ThinLine Mini LED Side Marker or Clearance Light w/ Bracket - Submersible - 3 DIodes - Amber Lens

ThinLine Mini LED Side Marker or Clearance Light w/ Bracket - Submersible - 3 DIodes - Amber Lens

Item # MCL-91AK

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Trailer Lights MCL-91AK - 2-1/2L x 1W Inch - Optronics
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Product Images

In Use/Installed


  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • Surface Mount
  • 2-1/2L x 1W Inch
  • Submersible Lights
  • Optronics
2-1/2" x 1-3/16". Waterproof mini trailer light functions as a clearance light or side marker light when properly mounted. Durable polycarbonate lens. Surface mount with self-grounding bracket and hardware. 1-Wire design. P2 rated. Lowest Prices for the best trailer lights from Optronics. ThinLine Mini LED Side Marker or Clearance Light w/ Bracket - Submersible - 3 DIodes - Amber Lens part number MCL-91AK can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (718)
  • Q & A (10)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL-91AK

2-1/2" x 1-3/16". Waterproof mini trailer light functions as a clearance light or side marker light when properly mounted. Durable polycarbonate lens. Surface mount with self-grounding bracket and hardware. 1-Wire design. P2 rated.


Features:

  • Small, rectangular trailer light functions as a clearance light or side marker light when properly mounted
  • Sonically sealed, waterproof housing and lens unit 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
  • Amber lens over white LEDs
  • Surface mount with self-grounding bracket - hardware included
  • Single wire design grounds through mounting hardware
  • P2 rated


Specs:

  • Dimensions: 2-1/2" wide x 1-3/16" tall x 7/8" deep
    • Dimensions with bracket: 2-7/8" long x 1-1/2" wide x 1-1/4" deep
  • Distance between mounting holes (center on center): 2"
  • Diodes: 3
  • Power draw at 12.8V: 0.051 amps
  • Lifetime warranty on LEDs


Optronics MCL91 Series ThinLine Side Marker and Clearance Light Diagram

Sonically 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 housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.


P2-Rated Lights

Diagram of light spread for P2 rated light

A P2-rated light produces a 45-degree angle of light to either side of its centerline for a total of 90 degrees of coverage. This beam pattern can be seen straight on, but it cannot be seen clearly from the side. So this type of light can be used as either a side marker light or a clearance light, but it cannot function as both. If you need both functions, then you must install 2 separate lights on your trailer - one as a front or rear clearance light and one as a side marker light.



MCL91AK Optronics Thin Line Mini LED Side Marker and Clearance Light with Bracket - Submersible - 3 DIodes - Amber Lens

Alternate part number: MCL-91AK







Video of ThinLine Mini LED Side Marker or Clearance Light w/ Bracket - Submersible - 3 DIodes - Amber Lens


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 - MCL-91AK Review

Today we're going to be taking a look at part number MCL-91AK. This is the Optronics Mini Thin Line Sealed LED Side Marker or Clearance Light. It's an amber light. It's going to come with the LED light, the chrome all-weather mounting bracket, you're going to get your wire plug, and your mounting hardware. This is designed to function as a clearance or side marker light. Here at the light, it's going to feature a nice amber lens. It's going to be sonically sealed, waterproof construction.

The mounting bracket's going to have a nice gasket here on the back side for a nice, tight seal when you're ready to install. It is designed to ground through the mounting hardware. It's a surface mount installation. If we take a measurement, the distance that we have between our mount holes, measuring center on center, that's going to be right on 2". The actual light is going to give us an overall length of about 2 1/2", an overall depth of 1 3/16", and then a thickness of 7/8". It's really easy to get it installed onto the bracket.

All you got to do is place it in there, push it until you hear it snap into place. Now with it installed in the bracket, our overall length is now 2 7/8", overall width is now about 1 1/2", and then the thickness, or the depth, is going to be 1 1/4". This light is going to draw 0.051 amps at 12.8 volts. Again, mounting hardware is included, as well as the plug. It's got the open back design here, so you can easily get the plug install into the slot where it needs to go. Now those ports are going to come pre-lubed with some dielectric grease, that way it's going to protect the connection points from any type of rust or corrosion. We're going to go and hook this up to our external power source, that way you can see what it looks like with power running to it.

We'll also be able to turn off our overhead lights so you can see the light in a low-light setting. Here you can see it's going to contain three diodes. Again, it's an amber side marker or clearance light. Sends out a nice, consistent signal. LEDs are going to be great replacements for incandescent lights. They're much more efficient, they burn brighter, they last longer, and it's going to optimize your light output with the multi-diode design. The last thing I want to show you is how easy it is to remove the light from the housing if you ever need to do so.

I find it easiest to do with a flat-head screwdriver. I'm going to put a little bit of pressure with one finger here on the back of the light. Place the flat-head in there and just tilt it for a little bit of leverage. It's going to allow the light to come right out. That's going to do it for today's review of part number MCL-91AK. This is the Mini Thin Line Sealed LED Side Marker or Clearance Light from Optronics. .


Customer Reviews

ThinLine Mini LED Side Marker or Clearance Light w/ Bracket - Submersible - 3 DIodes - Amber Lens - MCL-91AK

Average Customer Rating:  4.9 out of 5 stars   (718 Customer Reviews)

2-1/2" x 1-3/16". Waterproof mini trailer light functions as a clearance light or side marker light when properly mounted. Durable polycarbonate lens. Surface mount with self-grounding bracket and hardware. 1-Wire design. P2 rated.

- MCL-91AK
by:

The lights are excellent, a direct replacement. i ordered lights with the chrome frames but not really thinking I would actually use the frames, however trying to get the old lights out required either breaking them or the old plastic frames. Only 4 stars because the new frames require drilling new holes. I went through many websites and even yours I wasn't completely sure I was getting the right lights until they arrived. 317274



- MCL-91AK
by:

The LED lights are very good - very bright - but the mounting hardware to fit on a plastic boat fender is far from satisfactory. Two screws came with the lights which just won't work on pre-drilled holes from the previous lights. So a trip to the hardware store was my next step to purchase nuts, bolts and washers. 274008



- MCL-91AK
by:

Quick safe shipping and just what I needed, thanks for being the lowest cost. 698527



- MCL-91AK
by:

Easy install, works perfectly. Much more visible than the old lights. 643643



- MCL-91AK
by:

Good price, good quality 619711



- MCL-91AK
by:

They are bright and very nice looking at night. I like them very much. 596028



- MCL-91AK
by:

These lights were the perfect size to replace the incandescent ones on my golf cart. Customer service was above and beyond calling to make sure I wanted both orders I placed. Thanks. 591291



- MCL-91AK
by:

Nice lights. I went with these cause there not to wide. Had to buy marker lights separately bu no big deal there. 548829



- MCL-91AK
by:

Good quality lights, just be sure to drill the hole for the power wire over size so that the power port on the back of the light doesn't ground out on the trailer frame. 544994



- MCL-91AK
by:

Fast delivery and easy install. Works perfectly. 540669



- MCL-91AK
by:

Very fast delivery, exactly what I ordered, works great! 512277



- MCL-91AK
by:

Easy to install 483725



- MCL-91AK
by:

Works great 483862



- MCL-91AK
by:

No issues. Everything went very well and fast. 477824



- MCL-91AK
by:

Bought a brand new trailer and from the get go some of the regular lights were intermittent. Finally had enough and ordered LED's to replace them all; have not had a single light issue over a year later. All were direct drop in replacements, fit and look great. Thanks etrailer.com! 461013



- MCL-91AK
by:

Great products, very helpful. Shipping took a longer than should have. 444502



- MCL-91AK
by:

Easy to order. Fast shipping and good p roduct. 435910



- MCL-91AK
by:

very bright attractive light! quality seems good for the price. 401252



- MCL-91AK
by:

works great, nice fit 386916



- MCL-91AK
by:

These lights are still working flawlessly after one year of use. etrailer sells great products and their customer service is awesome !!! 381950


Comments

After 2 years these lights are still working without issue. Recommend this products!!

Scott R - 05/18/2018

38629

- MCL-91AK
by:

Great product. Had an issue with one of four...contacted etrailer and they supplied a replacement without issue. Can't say enough good things about this company. Thanks! 340887



- MCL-91AK
by:

Very happy with the lights I purchased. Being LED they are quit a bit brighter then the old ones that came with the trailer. Was very happy with Etrailer in the quality of the product and the quick turn around. 340536


Comments

No problem with the lights. I have been very pleased with the product and company. Would suggest doing business with etrailer.

Rick B - 02/05/2018

34223

- MCL-91AK
by:

Good products and they have a good inventory. They ship quickly and have good customer service 334863



- MCL-91AK
by:

Needed a few things for my boat trailer. E-Trailer had them and for a reasonable price. Will look here first the next time I need triler parts. 323702



- MCL-91AK
by:

Everything I've received from ETRAILER has "fit like a glove". Excellent service, products and price. Dave 322662



- MCL-91AK
by:

Parts were delivered quickly and worked well 320291



- MCL-91AK
by:

I love the LED lights!! They give me a brighter lighting around the trailer assisting me in attaching tie downs at night, I can clearly see the corners on my trailer while backing up. They look great and fit nicely on the my trailer. Extremely pleased with etrailer.com and this product. 317122



- MCL-91AK
by:

The product performed as expected. It was easy to install and worked out of the box. I was looking for a light that would provide a bright light and not consume a large amount of electrical current. These lights were installed on a boat trailer and I wanted something I did not have to worry about getting submerged when on. They work great. 306005


Comments

Lights are still working great.

Barry W - 10/17/2017

29369

- MCL-91AK
by:

Great products and very fast shipping, great company, I like the videos on the products, the measurements they take and show you on the videos so you know what your getting are very helpful. 285790



- MCL-91AK
by:

Nice lights looks good on my truck 270851



- MCL-91AK
by:

A very bright LED marker light for my boat trailer. 269770



- MCL-91AK
by:

I received an email right away stating they had received my order the order came in timely fashion all the parts for what we ordered and they work great on our trailer great company would order again 252596



- MCL-91AK
by:

Received as ordered . 233742



- MCL-91AK
by:

GOOD JOB THANKS 231344



- MCL-91AK
by:

Lights look great with the chrome trim & 3 LEDs. Installation was easy. 214903



- MCL-91AK
by:

excellent 208899



- MCL-91AK
by:

Perfect transaction. I received a call about 1 hour after I placed my order notifying me that one of the parts I ordered could take longer than expected but I still got my order in a week. 192308



- MCL-91AK
by:

These lights where bought as replacements for the same lights I bought 11 years ago. They go on the running boards of my Ford F250. 3 had gone dim so I replaced all 6 and these where exactly like the originals. Easy install and they are bright. Hope I get 11 more years out of these. 151273



- MCL-91AK
by:

Exactly as described always a pleasure working with e trailer I love the photos, descriptions and dimensional details it lets me select the exact right equipment for my job. 146858



- MCL-91AK
by:

Nice and bright compared to the incandescent ones they replaced...relatively easy install.... 143731



- MCL-91AK
by:

Great product snapped right into my existing frame. If I were to mount the light the mounting holes are on the small side. My existing holes are 1/4" and these are smaller. Not an issue just need a button head bolt and nut on the back for replacement. Very bright look great. 129901



- MCL-91AK
by:

Product was as promised. Although after further review, I will be returning them to get the centered stud mount. Fast shipping, ordered upgraded by etrailer. 128271



- MCL-91AK
by:

The product is exactly what I ordered. My only question is; My application is a surface mount? The wiring will need to be external of the bezel. If it were notched to allow this it would complete my application. Thanks for your interest after the sale. 104259


Comments

The LED Markers are excellent. Bright and low voltage, just what I needed.The center BrakeStop light still is not installed. I live in a retirement community with lots of electronic experience and we cant figure it out. It will bench test but will not work with my golf cart wiring??? We think it is a ground problem that could be resolved with a new harness....but I would have to give up a day of golf ...choices choices choices.Thanks for your continued interest and I promise the next rainy day we will run a new harness.Ed McNamara

Ed M - 10/18/2014

7288

- MCL-91AK
by:

Replacing incandescent for LEDs, on my boat trailer. I liked the chrome housing, same as my old ones. Have yet to put them on, will update review after that. 77860


Comments

Put them on finally, workslooks better than expected! Lights are soooooo much brighter than the old ones! Fantastic product!

Swisher 1 - 04/25/2014

3772

- AL91AB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


Easy to install and looks to be a exact replacement for the factory installed running lights on my boat trailer. 667856



- AL90AB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


Great products. They were shipped and here in 2 days. Installed them yesterday and everything works fine. Will definitely keep etrailer on my preferred vendor list. 488654



- AL91AB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


fast service great product good price t hanks 553817



- AL91AB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


Lights are a direct replacement for my trailer lights. Lights are much brighter than the original were. 124433


Comments

Lights still working great after a year of use.

George W - 04/12/2015

10771

- AL91RB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


I cant tell you how disappointed I am...........that I did not find out about etrailer.com until now. The LED marker lights that I installed on my Haulmark Lowhauler are simply amazing. They are brighter than the big name companies truck lites out there that I had bought. It is too late for me to return my other lites but I went ahead and changed all the lights on my Nautique boat trailer with your products. It is the difference between night and day. Thanks for the great products. You have gained a NEW LOYAL customer. Speaking of that... I placed another order today. Thanks again!! 73758



- AL91RB
by:

Review from a similar Optronics Mini Thinline in Trailer Lights


I needed a replacement LED Tribar module and discovered etrailer.com. Great website, quick service. 220277


Comments

On three separate occasions, the modules have become disconnected and fallen off the tribar. Initially, I thought it was a fluke. After the third time I replaced the entire tribar with a metal one with permanently affixed modules. Additionally, the plastic around the mounting screw broke off leaving the tribar dangling.

Steve H - 08/18/2016

20360
50
722
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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Brian T

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