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Optronics Mini Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Amber Lens

Optronics Mini Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Amber Lens

Item # AL82AB
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2-1/2" x 1-3/16" Rectangle. Waterproof LED trailer light functions as a clearance or side marker light when properly mounted. Durable polycarbonate lens and housing. Multiple mounting options. 2-Wire design. PC rated. Great Prices for the best trailer lights from Optronics. Optronics Mini Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Amber Lens part number AL82AB can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - AL82AB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • 2-1/2L x 1W Inch
  • Surface Mount
  • Rear Clearance
  • Side Marker
  • Submersible Lights
  • Optronics

2-1/2" x 1-3/16" Rectangle. Waterproof LED trailer light functions as a clearance or side marker light when properly mounted. Durable polycarbonate lens and housing. Multiple mounting options. 2-Wire design. PC rated.


  • Small, rectangular LED trailer light functions as both a clearance light and side marker light when properly mounted
  • Thinline Series has a low profile so that light can fit in tight spaces
  • 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 housing and lens
  • Amber lens over white LEDs
  • Compatible with 12V DC systems
  • Multiple mounting options
    • Surface mount with open-back or self-grounding bracket (sold separately)
    • Recessed mount with grommet (A91GB - sold separately)
  • 2-Wire design includes lead and ground wire
  • PC rated


  • Dimensions: 2-1/2" long x 1-3/16" tall x 7/8" deep
  • Diodes: 3
  • Power draw at 12.8V: 0.051 amps
  • Lifetime warranty on LEDs

Optronics AL91 Series Mini Thinline Marker/Clearance light dimensions

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 damage the diodes or circuit board.

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.

AL82AB Optronics Mini Thinline Clearance and Side Marker Trailer Light - Submersible - 3 Diodes - Amber Lens - PC Rated

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Customer Satisfaction Score:

Customer Reviews

Optronics Mini Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Amber Lens - AL82AB

Average Customer Rating:  4.9 out of 5 stars   (1405 Customer Reviews)

2-1/2" x 1-3/16" Rectangle. Waterproof LED trailer light functions as a clearance or side marker light when properly mounted. Durable polycarbonate lens and housing. Multiple mounting options. 2-Wire design. PC rated.


I replaced all the marker lights on our 2008 Sundowner 3H gooseneck w/living quarters trailer. The original lights had a snap-in connector for the ground, and they never worked correctly, always corroding and loosing connections. I was able to use the original base, cut the trailer ground and power to the lights, solder the new lights to the trailer wiring, and snap new lights into the original bases. In the past year this horse trailer has made numerous trips around the immediate area and one loop from central coast CA thru NV, WY, NE, KS, CO, NM, and AZ without any light issues (novel idea) - great job Optronics. Now if someone could just figure out how to keep the hub cabs from flying off.


The side marker lights and grommets are a very good match for replacing the original equipment on my EZ Loader boat trailer. Thanks for your online pictures and having what I needed.

One year later and still works like new.
George J - 12/23/2021


I find all of my horse trailer needs at etrailer. The best!


For the price, these are hard to beat. Install was straightforward and the lights snapped into place without any trouble. Only had the trailer in the water one time since the install, so we’ll see how well they hold up over time. Just a little more work having to secure the ground wire, but I think that’s a better ground than the single wire versions.


No problems.


Perfect fit for my EZLoad trailer repla cements


Looks great and easy to install.


Great little waterproof light


easy istall works great


Fit perfectly

Lights are still working well after two years of abuse
Steve - 04/04/2022


Perfect replacement light for my ez loader trailer, I had a tire fail and it wiped out the lights on my fender, these slipped right in with the new grommets and now the whole trailer is led. Much brighter than original bulb lights.


replaced trailer wireing with thicker wire, replaced 4 side marker lights led, replaced both tail lights led, all worked and look good. I just hope these led lights last a long time. the lights I took off all worked, but were not as bright as I wanted, they were the original lights that were on my pontoon boat trailer.


Excellent product.


great light for the price direct replacement for ezloader clearance light

year of saltwater, still look new and still nice and bright
Wayne - 06/07/2020


So far so good. Replaced wesbar lights no longer available/desirable. These are direct swaps into the rubber grommets and are sealed on the back. Used watertight, heat shrink butt connections to existing trailer with g and back in business. Here's hoping they hold up under repeated dunking in water on boat launch and recovery.


clearance light fits perfectly. The tail wire allows for quick and secure installation. I used the plug in style previously but they continually unplugged and damaged the connector. They are very bright, easily seen.
Steffen G at trainer was most helpful in assisting with the proper selection and for filling the order. Packing was excellent. They arrived as scheduled. The online tracking is exceptional.
I highly recommend etrailer and i shop here first for all my trailer needs.
keep up the great customer service,


Very nice, bright lights. The quality appears to be excellent. They're made in Taiwan which is better quality than china made products. I've installed them on my jetski trailer but haven't backed it into the water yet to see how the lights survive water. I'm optimistic that they'll be just fine.


I order these to replace marker lights on my snolandr snowmoble trailer. They are the exact size as my existing lights which was great. The best part about these lights was that the wires come wired into the light already and seem to be sealed really well. These should hold up great!


LED marker lights are the way to go. I would replace these every 3 or 4 years because the plastic just gets old and becomes hazy. I also replace the gasket as they get brittle and crack. Make sure you are getting the correct gasket for your lights. Call etrailer if you have any questions!


The lights arrived and the installation was very easy, most of the lights i ordered we're plug and play. The LED lights make a big difference on seeing the trailer at night


Delivered during these crazy times early. Thank you. Great experience. My boat trailer has clearance lights held by rubber gaskets and had to know the rights one. With the selection they had I figured it out and all fit. Would buy from them again


Exact replacement for two of the amber side lights on my 2004 Trailstar boat trailer, except LED! The other online sites don't have these. So glad I found your website.


I have to say it's an absolute pleasure dealing with etrailer. Not only did my package arrive on time as promised but the experience of dealing with the people at etrailer such as Tommy and Dani made it that much more of fun experience. There was not a problem with answering my questions if they did not know the answer they found out the answer and got back in touch with me. Their prices are great their products are good quality and there's so many good things to say about the company that I could go on and on. Keep up the good work and I will be doing all my trailer business with etrailer. Just check out their website and see how much more they have to offer.


Exactly what I was looking for. Great communication and interactive video describing lights. I have made several purchases from etrailer and every order has been to my complete satisfaction. Customer service is second to none.


products are good quality, in expensive, and customer service by Nicole was great. I was handled in 10 minutes .

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • What Does PC Rated Mean On The Optronics Trailer Lights, # AL82AB
    PC rated means that the light is viewable from a 90 degree angle. Most other lights are considered to be viewable from a 45 degree angle. On the Optronics Trailer Lights, # AL82AB, this light will function as both a clearance and side marker light if mounted at a 45 degree angle. Just mounting the light on the side of your over 80 inch wide trailer will not allow it to be both a clearance and side marker light, because the light will not be seen at the front or back of the vehicle. To...
    view full answer...
  • How to Determine the Brightness of an LED Light
    When looking at LED lights what you will want to look at to determine the brightness is how many lumens that it outputs. Lumens is the LED version of Watts for incandescent bulbs. The voltage ranges that you mentioned have to do with what kind of volt system you are dealing with and if the lights are compatible. The units rated with a range of 12-30 volts might end up being slightly dimmer at times on a 12V system since voltage can fluctuate a little bit. Since both of the options that...
    view full answer...
  • Side Marker/Clearance Light Needed for an EZ Loader Boat Trailer
    We do have a variety of amber lights that you can use for side marker/clearance lights on your trailer. One of the most popular is the Optronics Mini Thin Line Sealed LED Light # AL82AB which measures 2-1/2" x 1" and is submersible. Since we don't have a way to know what you have on your trailer by the VIN if the light I mentioned above doesn't suit your need just let me know what size light you're looking for and I can make an additional recommendation.
    view full answer...
  • Recommended LED Marker Lights For Kargo Max Trailer
    I recommend using LED side marker lights part # AL82RB. This is a 2-wire PC-rated light that measures 2-1/2 inches long x 1-3/16 inches wide x 7/8-inch deep. If you are looking for an amber light I recommend part # AL82AB. This is the same as the red light I mentioned above but has an amber lens.
    view full answer...
  • What Replacement Amber/Red Side Marker Lights Fit My Boat Trailer?
    I have a solution for you. After much research, the Optronics brand is the closest we have to the dimensions you are looking for. You are absolutely correct that the Optronics lights have a bit wider dimensions than your lights. The # AL91RB and the # AL91AB measure 2-1/2" x 1-3/16" x 7/8". With that being said, it is often much easier to replace the lights altogether than to look for an exact match of replacement lens. For the full units, I recommend the # AL82RB and the # AL82AB. These...
    view full answer...
  • PC Rated Clearance Light Similar to the Sealed, Mini Rectangular LED Trailer Clearance # MCL95AB
    PC rated means that the light is viewable from a 90 degree angle. Most other lights are considered to be viewable from a 45 degree angle. The Sealed, Mini Rectangular LED Trailer Clearance # MCL95AB is not a PC rated clearance light. The closest light we offer to that light that is PC rated is the Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB. I also attached a link to a page that has all of the PC rated clearance lights we offer.
    view full answer...
  • Replacing Tail and Clearance Lights on Shoreland’r Boat Trailer with LED Lights
    I do have some options for you, but since I was unable to find anything online that directly referenced the size of the part numbers that you gave me you will need to verify that these are the correct size for your Shoreland’r boat trailer. The Wesbar Wraparound LED Tail Lights, part # 271595 for driver side and part # 271594 for passenger side, measure 6-1/2" - 7" long, 3-3/4" tall, and 3" deep which I believe is close to what you already have. For clearance lights we have the Optronics...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Replacement Red and Amber Rectangular Clearance Lights Needed
    Thank you for reaching out and for the photos! From what I'm seeing it looks like the replacement red and amber lights you're looking for are parts # AL82RB and # AL82AB respectively. These are LED lights that measure 2-1/2" long x 1-3/16" tall x 7/8" deep and install on bases like what you have in your photos. The lights come with bare wires so you'll need to cut off the white connector at the back of your lighting and then splice these lights to the connector using butt connectors like...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Recommended Amber Light Strip For LED Lights
    I have a couple solutions for you, but we don't have an LED light strip in amber. What we do have amber light strips like the Sealed, 3-Light Truck and Trailer Identification Light Bar with Black Base - Amber # MC93AB which uses 3 sealed incandescent lights that can be replaced with the Optronics Mini Thin Line Sealed LED Marker/Clearance Light - PC Rated - Amber # AL82AB. Another option is the 3-Light Truck and Trailer Identification Light Bar with White Base - Amber # MC99AB. This light...
    view full answer...
  • Can the Optronics AL91 Light Be Mounted Vertically
    Yes, you can mount this Optronics Trailer Light # AL82AB basically in any way you like as long as it visible. You will need to consult your local laws and regulations to determine which mounting positions are legal. I attached a review video for this product for you to check out also. You might also be interested in purchasing a Black Mounting Bracket # A91BOB to help you install the # AL82AB. I attached a review video for this product for you to check out also.
    view full answer...
  • Does Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB Have Power and Ground Wire
    The Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB that you referenced have a power and ground wire that comes out of the back of the light. The recommended base with this light is part # A91BOB. But if you are asking about wiring you can easily wire these lights to your existing trailer wiring. White is ground black is power.
    view full answer...
  • Recommendations for Trailer Side Light Lens
    Without knowing which replacement lens kit you are looking at, I will give you the general rules. If it is the side of the tail light like # TLL28RK for instance, then the side lens will be red. If you mean the side of the trailer and are referring to the clearance lights, then they should be amber like # AL82AB. I've attached an article to assist.
    view full answer...
  • Availability of LED Clearance Lights That Replace the Peterson Rectangular Light # M152A
    You are right that the Peterson Rectangular Trailer Clearance and Side Marker Light # M152A is incandescent. For an LED alternative we have the Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB which has the same dimensions as the Peterson option, it is waterproof, and it has a simple 2-wire design for easy installation. The black wire is for power and the white wire is for ground. I have attached a review video as well as an installation video that you can reference...
    view full answer...
  • Surface Mount Bracket Recommendation for Trailer Clearance Light part # AL82AB
    The surface mount bracket you need is the part # A91BOB for the light part # AL82AB that you referenced.
    view full answer...
  • Replacement Light for Optronics Mini Thinline LED # MCL-91AK
    For a replacement light section of the # MCL-91AK you could use the part # AL82AB.
    view full answer...
  • Recommendation For Replacing A Grote 45253 Light With An LED Light On A Pleasure-Way Excel Motorhome
    Though we do have direct replacements for the Grote 45253 light you have, they will be incandescent as well so won't be what you are looking for. With that said, as the spot where a light can mount will limit the size you can go with, I think the Optronics Mini Thinline LED Clearance and Side Marker Light # AL82AB with the # A91BOB mounting bracket will be your best option. This will be a little smaller and you will need to drill new mounting holes as they will be 2" apart, but the overall...
    view full answer...
    Image 1 for Image 2 for
  • What Are the Dimensions of Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82RB
    The Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82RB measures 2-1/2 x 1-3/16 x 7/8 inches. This sealed waterproof light features 2-wire design. The mounting bracket is not included but is available as part # A91BOB in black or part # A91OB in chrome. Please refer to the photo provided which shows this light fixture. This same light is also available in an amber lens, part # AL82AB.
    view full answer...
    Image 1 for
  • Red and Amber Trailer Clearance Lights That Measure 2-1/2 Inches x 1 Inch
    We have trailer clearance lights that are about 2-1/2" x 1" but clearance lights will only have 2 wires (power and ground) so there are no 3-wire clearance lights. Tail lights can have 3 wires but there are none that are as small as what you mentioned. So I recommend using 2-wire lights, which are the following: - Red Lens: Optronics Mini ThinLine LED Clearance and Side Marker Light # AL82RB - Amber Lens: Optronics Mini Thinline LED Clearance and Side Marker Light # AL82AB For a mounting...
    view full answer...
  • What Circuits Does Trailer Clearance Light with a Single Black and White Wire Carry
    Typically a trailer taillight that has two wires which one of is black and the other white is a single function light like on the part # AL82AB. The black wire is the power circuit and the white wire is the ground circuit. There won't be a way to get this light to work as both a stop/turn circuit and a running light circuit. You'd most likely want to run the running light circuit to these lights instead as they sound like they are clearance lights.
    view full answer...
  • How to Install Side Marker Light
    To install a side marker light like the Optronics # AL82AB on your 2014 Malibu you will need to ground the white wire and then connect the black wire to your running light circuit. This then installs on the mounting bracket # A91BOB which you will need install using something like a self-tapping screw # 1131832. Sometimes the lights ground via the mounting hardware so if that's the type of light you have you need to make sure that you mount it to a clean, bare-metal surface. Attached...
    view full answer...
    Image 1 for
  • What is Second Wire on Clearance Light for
    Since clearance lights only carry the running/tail light function, if your clearance light has 2 wires that means 1 would be for power and 1 would be for ground. If you check out the Optronics Light # AL82AB you can see that the black wire is for power and the white is for ground. You can either tie your ground wire into the main ground circuit or you can simply add a ring terminal # DW05702-1 and ground it to the frame on your trailer with a self-tapping screw # FA1131822. The ring terminal...
    view full answer...
  • Does Optronics 35' Wishbone Harness Carry Wires for Running/Clearance Lights
    The brown wires on the Optronics 35 Ft 4-Way Trailer Wiring Harness # A35W42B carry the running/tail light functions that you will need to splice into for your amber clearance lights. Attached is a photo highlighting the functions of the different wires as well as an installation video of the Optronics Mini Thinline LED Clearance and Side Marker Light # AL82AB to give you an idea of how you would attached the lights.
    view full answer...
    Image 1 for
  • Red Side Marker and Clearance Lights for a Trailer or Coach
    Yes, you would need Sealed, Thin Line LED Trailer Clearance, Side Marker Light, # AL82AB. For installation, you will also need a bracket. For black use part # A91BOB. For chrome use # A91OB.
    view full answer...
  • How Does the Flush Mount Grommet # A91GB Install a # AL91AB Light Into a Trailer
    All the parts you ordered are designed to work together, but the grommet part # A91GB is for flush mounting the Optronics Light part # AL82AB that you have. This grommet will get installed into a hole in on your trailer that is about 2-7/8 inches across and 1-1/2 inches tall. If you do not have a hole with those dimension you might be better served getting a Black Mounting Bracket # A91BOB to allow you to surface mount the # AL82AB.
    view full answer...

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