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Miro-Flex LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens

Miro-Flex LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens

Item # AL191AB
Our Price: $11.47
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Trailer Lights
Shipping Weight: 0.07 lbs
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2-1/2" x 1-1/8". Waterproof, LED trailer light serves as either a side marker light or a clearance light. Built-in miro-flex reflector. Durable polycarbonate lens and housing. Surface mount. Accepts standard 1-wire or 2-wire plug. Great Prices for the best trailer lights from Optronics. Miro-Flex LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens part number AL191AB can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - AL191AB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • 2-1/2L x 1-1/8W Inch
  • Surface Mount
  • Rear Clearance
  • Side Marker
  • Submersible Lights
  • Optronics

2-1/2" x 1-1/8". Waterproof, LED trailer light serves as either a side marker light or a clearance light. Built-in miro-flex reflector. Durable polycarbonate lens and housing. Surface mount. Accepts standard 1-wire or 2-wire plug.


  • Rectangular LED trailer light serves as either a side marker light or a clearance light
  • Miro-flex faceted reflector provides increased light output with a contemporary appearance
    • Designed to easily replace incandescent lights
  • 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 LED
  • Surface mount with bracket (sold separately) - hardware not included
    • Mount with self-grounding bracket (A91BB or A91CB - sold separately) or open-back bracket (A91BOB, or A91OB - sold separately)
  • Accepts standard 2-prong plug
  • DOT and SAE compliant
  • P2 rated


  • Light dimensions: 2-1/2" long x 1-3/16" tall x 1" thick
  • Diodes: 3
  • Power draw at 12.8 volts: 0.10 amps
  • Lifetime warranty on LEDs

Optronics Clearance or Side Marker Light with Micro Flex Reflector - Submersible - Rectangle - 3 Diodes - Amber Lens 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 internal components.

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.

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.

AL191AB Optronics Miro-Flex LED Clearance or Side Marker Light with Reflector - Submersible - 3 Diodes - Rectangle - Amber Lensr

Alternate part number: AL-191AB

California residents: click here

Customer Reviews

Miro-Flex LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens - AL191AB

Average Customer Rating:  4.8 out of 5 stars   (1656 Customer Reviews)

2-1/2" x 1-1/8". Waterproof, LED trailer light serves as either a side marker light or a clearance light. Built-in miro-flex reflector. Durable polycarbonate lens and housing. Surface mount. Accepts standard 1-wire or 2-wire plug.


Fit exactly as expected. These are quite robust and bright. NOTE, this is only the lens and not the frame.


Nice light, but didn't know I had to buy a mount and plug to fit the back of the light when I bought it.


Bright light, easy to attach with the recommended pigtail connectors.


The lights look and work great! Super customer support from George too! What a nice change from my old bulb lights.

Here are some day and night pics. I have a short vid of a turn light blinking, but the site won't let me upload vids.


The lights and brackets arrived nicely-packed, and worked on my boat trailer as intended as intended. Check the original mounting holes. The mounting holes for the new light bar were located in different positions, than the damaged light bar I replaced, so a drill and bits, and zinc spray paint might be necessary. I also used stainless steel screws, instead of the supplied screws.


I found those to be junk and didn’t use them as lights. I made due with my old ones and glued the reflector lens of your marker lights to the side of the trailer as reflectors.


Did not get to use. Wife through them away by accident.


I like the light, I just wish you prompted me to buy the grommet which is why i deducted a star. I had to place a second order and now I have to wait again to install. Overall it was a good experience. Would have been perfect if I was promoted though

Etrailer Expert

Sierra K.


I apologize for the confusion. The grommets you are referring to are located in the related parts tab on the product description, item #A91GB.


Very nice light. Really bright goes well with the red clearance lights and tail lights with the same style led


Really bright, Highly recommended!


I purchased these to replace some older LED marker lights that had started to corrode on the back side. These are much brighter than the set they are replacing. They look great.


super bright side marker lights great improvement over old bulbs



Very bright lights and look ten times better than the old incandescent lights I had on my boat trailer. Excellent service from etrailer as always.


Products delivered exactly as promised and advertised. Excellent support and service. Will be installing lights in the next few days.


Lights were installed easily and are much brighter than the original lights.


great side marker light. easy to instal l.


I am happy with the product and the shipping was awesome it arrived a day early thank you etrailer. I was so excited that I told my friends my package arrived early thank you..


I like LED’s that are bright! With 3 LED’s vs. most competitors having 1 per light, these are my favorite.


I had a couple a91 lights out on my trailer. These were a direct fit replacement. The al191 is much brighter.


As always the employees at etrailer answered all my questions and even offered a better solution to my issue that was less money. everything arrived on time and as promised. it is a pleasure doing business with them


Everything went very smoothly. Website very user friendly. The dimensions of lights on the website very helpful with matching my old lights for new LED ones. Fast shipping as well.


The lights were exactly as described. Katie found the right matching pair and at a much better price than found elsewhere. Shipping was fast.


The lights fit in the holes that were already there and the lights work as advertised.


Exact fit where older ones were bright lights great product

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Are the 12 Volt Hot Lead and Ground Connections on the Mini Thin Line LED #AL191AB Interchangeable
    I went out to the warehouse and pulled a Sealed, Miro Flex, Mini Thin Line LED Marker or Clearance Light, 3 Diode - Amber, # AL191AB, to test it. The 12 volt and ground slots (wire is not included) are interchangeable. As long as one is hot and the other ground, it does not matter, the light will work with the wires in either position.
    view full answer...
  • Replacement Lens And Bracket Base For An A91 Light
    When it comes to replacement parts for your A91 light I do have a few replacements that would work for you. The Mounting Bracket for Optronics A91, AL82, AL90, AL91, and AL191 Series Lights - Open Back - Chrome # A91OB has a chrome-finished plastic construction. It has dimensions of 2-7/8 inch long x 1-1/2 inch wide x 1/2 inch deep. It has a surface-mount design. The Miro-Flex LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Amber Lens # AL191AB is a 2-1/2 inch...
    view full answer...
  • How Does Part A91BOB Mount To The Trailer and Are The Lights It Holds Submersible
    I have a solution for you, but we don't have any clearance lights that would mount with the white bushing you're referring to. If you went with the # AL191AB and # AL191RB like you mentioned you would need the # A91BOB mounting plates to mount them onto your trailer. These can be secure with a nut/bolt or with a self tapping screw into the trailer frame and you can use the same size screw/bolt as the bushings to make sure it's a secure connection. You will also need the 2 Wire Pigtail #...
    view full answer...
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  • Is There A Grommet Available To Go With The Optronics Dragons Eye LED Lights
    You are correct in that Optronics does not make a gasket to go with their line of dragons eye LED lights. If you are wanting marker lights with a grommet or gasket we do have the Optronics micro flex LEDs # AL191AB in amber and # AL191RB in red. These can be brackets that come in either black # A91BB or chrome # A91CB.
    view full answer...
  • Could Optronics Amber LED Trailer Turn Signals be Used as Motorcycle Turn Signals
    The Optronics Trailer Light # AL191AB that you referenced would make an excellent turn signal for your motorcycle. The LED diodes are very bright and should provide you with very visible turn signal. The chrome bezel to go along with it would be the Chrome Mounting Bracket # A91CB. This product would normally ground through the mounting bolts, but since you would be mounting this in a fiberglass bag you would need to ground it using an Optronics Single Wire Ground # A91LW. I attached...
    view full answer...
  • Upgrading To LED Trailer Lights For a Heritage Trailer Carrying 2003 Lund Fisherman Boat
    The Optronics LED Combination Trailer Tail Lights # TLL160RK will replace your tail lights for LED on your Heritage trailer. If you are able to remove the clearance lights from their bases we have the following Amber/Red lights below. Thinline LED Clearance and Side Marker Light Amber # AL91AB, Red # AL91RB Miro-Flex LED Clearance or Side Marker Light Amber # AL191AB, Red # AL191RB Thinline LED Mini Clearance and Side Marker Light Clear Lens Amber # AL91CAB, Red # AL90RCB
    view full answer...
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  • Driver Side Trailer Side Marker Light Does Not Light Up
    It looks like you have the Sealed, Miro Flex, Mini Thin Line LED, # AL191AB. What I think is happening is that there is a bad ground connection. The bracket you are using, # A91BB, has a ground transfer that moves the ground from the terminal in the back to the mounting hole. Check to make sure that the bracket is secured to a bare metal surface that is free of dirt and corrosion. You may try grounding the terminal using a wire instead of through the mounting hardware to get a better connection....
    view full answer...
  • Does Optronics Mini Thin Line LED Marker/Clearance Light # AL191AB Use Grommet # A91GB
    Yes, the Optronics Mini Thin Line LED Marker/Clearance Light # AL191AB can be flush-mounted using the Optronics Flush Mount Grommet # A91GB. This PVC grommet will provide a degree of shock protection for the installed light and its rear opening allows easy access for wiring. If you prefer a surface-mount installation, you can instead use self-grounding mounting bracket # A91BB. The marker light # AL191AB has a 2-prong input on the back; you can use 6-inch pigtail plug # A46PB, or if you...
    view full answer...
  • Replacement LED Taillight Recommendation for 2002 Shoreland'r Profile 2000 Boat Trailer
    We do indeed have some LED taillights that'd work great on your boat trailer. I'd recommend # STL57RB for the driver side and # STL56RB for the passenger side. These lamps measure 6-1/16 x 2-5/8 inches, and would work well on your trailer. As you can see in the photo provided by one of our customers, the taillight works well on a Shoreland'r trailer. As long as they're still working okay, you certainly may leave the existing fender running lights in place. If you decide you want to replace...
    view full answer...
    Image 1 for
  • Brackets and Wiring for Sealed, Miro Flex, Mini Thin Line LED Marker or Clearance Light # AL191AB
    We do have the parts you need to complete installation of the light. But first, sealed, Miro Flex, Mini Thin Line LED Marker or Clearance Light # AL191AB does not include a base or wiring harness. We have the compatible bases listed as related products on the right hand side of its product page. There is flush mount grommet, # A91GB Self-grounding black bracket, # A91BB Black bracket with open back, # A91BOB Chrome bracket with open back, # A91OB Self-ground chrome bracket, # A91CB For...
    view full answer...

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Michael H
Expert Research:
Michael H
Employee Adam R
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Employee Cole B
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Employee Shane H
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