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Mini LED Trailer Clearance or Side Marker Light - Submersible - 1 Diode - Clear Lens - Amber
Optronics

Mini LED Trailer Clearance or Side Marker Light - Submersible - 1 Diode - Clear Lens - Amber

Part Number: MCL99AC1B
In Stock
$11.41
Retail:$17.79
You Save: 36%
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In Use/Installed

2-1/2" Long x 1-1/8" wide. Waterproof trailer light with 1 amber diode serves as either a side marker light or a clearance light. Clear polycarbonate lens. Surface mount - horizontal or vertical. Single-wire design. P2 rated. Great Prices for the best trailer lights from Optronics. Mini LED Trailer Clearance or Side Marker Light - Submersible - 1 Diode - Clear Lens - Amber part number MCL99AC1B can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (662)
  • Q & A (0)
  • Videos (2)
  • Photos

Optronics Trailer Lights - MCL99AC1B

Highlights

  • Reliable In Any Weather: Sonically sealed housing keeps water out for lasting performance.
  • Fewer Replacements Needed: LED diode lasts up to 50 times longer than incandescent bulbs.
  • Low Power Draw: Uses only 0.06 amps at 12.8 volts for efficient lighting.
  • Compact Design: 2-1/2" x 1-1/8" size fits tight spaces on trailers.
  • Flexible Mounting: Installs horizontally or vertically to suit your setup.
  • Road Legal: P2-rated and DOT compliant for proper clearance or side marker use.

Features to know about

Brighter and Longer-Lasting Lighting: Efficient Amber LED

Say goodbye to dim incandescent bulbs and constant replacements. This mini LED trailer light uses a single amber diode that lasts up to 50 times longer than traditional bulbs. It shines brighter while using less power, drawing only 0.06 amps at 12.8 volts. The clear polycarbonate lens keeps the light crisp and clean, helping your trailer stay visible without draining your system.

Built to Handle Water and Weather: Sonically Sealed and Submersible

Water damage ruins a lot of lights, but not this one. The lens and housing are sonically sealed into one solid waterproof unit, keeping moisture out and protecting the internal components. It’s fully submersible, so it’s right at home on trailers that see wet roads or even get dipped at the boat ramp. Once it’s mounted, you can count on it to stay dry and working.

Simple Installation Anywhere: Compact Surface-Mount Design

Sometimes you just need a small light that fits where space is tight. At only 2-1/2" wide by 1-1/8" tall and 5/8" deep, this rectangular light mounts cleanly on almost any flat surface. It can be installed horizontally or vertically, giving you flexibility for your layout. The single-wire design makes wiring straightforward since the ground is handled through the mounting holes—no extra fuss needed.

Reliable Safety Coverage: P2-Rated for Clear Visibility

Visibility matters for safety, and this P2-rated light delivers a focused beam you can count on. Its 90-degree total coverage makes it effective as either a clearance or side marker light so other drivers can easily spot your trailer from straight on or slightly off-angle. DOT compliance backs up its performance, giving you peace of mind that it meets recognized safety standards.

Specs

Dimensions

  • Overall dimensions: 2-1/2" wide x 1-1/8" tall x 5/8" deep

Dimensional diagram of Optronics MCL99AC1B mini LED trailer clearance or side marker light showing clear lens, amber diode, and measurements for length and width.

Electrical

  • Power draw at 12.8 volts: 0.06 amps

Lighting

  • Diodes: 1

Warranty

  • Lifetime warranty on LEDs

MCL99AC1B Optronics Mini 1-LED Side Marker/Clearance Trailer Taillight - P2 Rated - Clear Lens with Amber LED





Video of Mini LED Trailer Clearance or Side Marker Light - Submersible - 1 Diode - Clear Lens - Amber
Video Thumbnail Video Player Dialog

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




Video Transcript for Feature Breakdown: Mini LED Trailer Clearance or Side Marker Light

Hey everybody, Ryan here at etrailer. Today we're gonna be checking out and showing you how to install the Optronics mini LED clearance or side marker light. A lot of times, you know, lights on trailers just flat out go bad, they get some age to 'em, they sit outside a lot and they just quit working well like ours here. So we opted to go for an LED, more or less a direct replacement to what we have already. And being that we're LED these should last a lot longer compared to the older and candescent light bulbs. This particular light is gonna have one LED and shines nice and bright, you know, uses very minimal power to get it to illuminate.

And so you're primarily gonna use these on the front of your trailer or the sides. There's these available with red lights as well. So if you're putting some on the back of your trailer, whatever, that's always an option for you. And probably the big thing with me, you know, is figuring out are these gonna work with your particular application If you're gonna be adding them, you know not really a big deal, you can make it work, right But if you're gonna replace an existing light one thing that I hate doing is having to drill unnecessary holes. So to figure out if your existing mining locations will work with this one, which they're relatively standard.

From center hole to center hole, it's gonna be an inch and seven eights. The actual length of the whole light itself is gonna be two and a half inches. It's gonna be an inch and one eights tall and five eights of an inch thick. One thing I do like about these is the clear lens and that might not be for everyone, but I'm a fan of 'em. I think it makes the trailer look a little more modern and these are just less noticeable when they're not on as compared to the, you know, your orange lenses there.

That definitely stick out a little bit more but that's just my opinion. If you'd rather have an orange lens, there's plenty other options available right here at etrailer. If you take a look at the back of the light all this stuff inside of here where all the electronics are is sealed it's hard to tell cause it's clear, but you know, moisture and things like that definitely will have a much harder time getting in. And matter of fact, this is a submersible light. So if it's on a boat trailer something or out in the weather, shouldn't have much to worry about.

I do suggest though, if you completely submerse it, turn the power off it'll just help prolong the life of it. And since this is a one wire type light this will be your power wire. The ground is actually gonna be the strap here. So when you put your bolt through and attach to the trailer, that's gonna touch the metal portion of our trailer and provide us with the ground. So whenever you do mount this up it is gonna have to be on a metal portion of the trailer. That way it can get an appropriate ground. If you don't have that particular situation, no big deal. You can always get lights like this that have a two wire and that way you're able to actually hook the wire up to your ground wherever it may be. That's really about it though. I mean, honestly, if you're gonna be replacing or adding lights, really no reason not to go with an LED, at least in my opinion. Chances are pretty good, you know, it'll be the last time you'll have to mess with it. They just last for, for such a long time. As far as the installation goes, really straightforward. So why don't we get into that right now Now keep in mind everyone's situation's gonna be a little bit different, but today we're gonna be using it as a clearance light on an enclosed trailer. But generally speaking, the same information will apply to, you know, just about all of them, whether it's one like this, utility trailer, anything along those lines. First thing you want to do is remove your old light and if the wiring's in good shape, you can always just work off of that, which ours is. So I'm gonna cut. Cut that off there. We're gonna strip back the insulation, give that wire a twist and I'm gonna use the heat shrink butt connector. This will slide over the end and we'll crimp it down. With this wire having the butt connector on it, we'll simply take our new light, strip back insulation on it a little bit, plug that in and crimp it down. And I'm using heat shrink type butt connectors. These help prevent corrosion. And the ends will seal up. So I'll come in with my heat source and then get that done. Since the light's ground is that strap there and it'll touch the metal portion of our trailer's top rail here. You wanna make sure that surface is clean. So you know, I took some sandpaper, just kind of, clean off the surface there. And pretty straightforward from here. We'll just simply line it up, take our screws. And get it secured. Last thing we need to do now is just simply test it to make sure it's working properly. So I plugged into a test box you can use your truck or whatever but keep in mind if that has any issues, might mislead into thinking it's something you did on the trailer side. But we'll go ahead and turn on our running lights and check it out. So it looks like our light is working the way it should and that's how easy it is to put in. If you picked up any more of these, you'd simply just repeat that same process to get those done. But with that said, that'll finish up our look at and our installation of the Optronics amber LED clearance or side marker light.

Customer Satisfaction Score:

Ratings & Reviews

4.8

662 reviews
Review sort icon
2-1/2" Long x 1-1/8" wide. Waterproof trailer light with 1 amber diode serves as either a side marker light or a clearance light. Clear polycarbonate lens. Surface mount - horizontal or vertical. Single-wire design. P2 rated.

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



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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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came fast



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Good quality part and delivered on time



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Item is just as described great people to do business with



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PRO's: Small size & bright. Basically, easy to install.
(con: I (personal preference) wish that such items were available at a better/ best price in a bulk quantity.



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Matches exactly the lights on the trailer.



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Buying online was easy and I received my order quickly. Fast and easy!



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Lights were easy to mount and wire up!



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Lights look awesome, just wish shipping was quicker



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Can't believe they are the same exact ones from factory, wanted to add more bling to the trailer without breaking the bank



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We are adding more clearance lights to our trailer These are a perfect match for the existing ones on the trailer.



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This item was an exact replacement for the one on my bass boat trailer. Installation was easy and took only a few minutes.



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I waited a few months to send review: just mount / wire them and they work flawlessly, as expected from etrailer. The brightness is indeed perfect for side markers, amber when on, barely notice them when off.



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as promised
thank you


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See what our Experts say about this Optronics Trailer Lights

  • Clearance and Marker LED Lights for Lark Trailer
    I have a solution for you but we do not offer any kits larger than the one you referenced item # TL16RK. We do offer a wide range of red LED marker lights for your Lark 12 Ft trailer. I have linked our selection to the bottom of this page so you can sort by the size and mounting style you require. For white marker lights I recommend the Mini LED Trailer Clearance or Side Marker Light 1 Diode - Clear Lens item # MCL99AC1B.
    view full answer...
  • Recommended Replacement Step Light for 2017 Forest River EVO Travel Trailer
    The Sealed, Mini LED Marker, Clearance or Identification Light, 2 Wire, 2 Diode - Red w/ Clear Lens # MCL13CR2B is 2-1/2 inches wide and 1-1/16 inches tall. For a similar clear light, I recommend the Mini LED Trailer Clearance or Side Marker Light - Submersible - 1 Diode - Clear Lens - Amber # MCL99AC1B. With the amber LED, you still can see for your steps. I've attached a video to assist.
    view full answer...
  • Available LED-Type White Clearance/Marker Lights
    The Prostrobe White Side Marker Light # PRS70753 automatically shifts between its three strobing patterns whenever power is applied. This flashing function cannot be defeated. If you'd like a white lens LED-type light that remains steadily on then you might prefer one of the other lights displayed on the link provided. All are clear lens LED lights and you can sort the results by clicking on the filters. For instance, if you want a rectangular shaped light like the # PRS70753, then you...
    view full answer...
  • Mini LED Clearance Light With Clear Lens & One Wire
    We do have a light that is similar to the Mini LED Clearance or Side Marker Trailer Light - Amber Lens # MCL85AB but with a clear lens: - Mini LED Trailer Clearance or Side Marker Light - Clear Lens # MCL99AC1B This is a submersible, single-wire light just like you were referencing.
    view full answer...

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Joshua S
Video by:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Ryan G
Installed by:
Ryan G
Employee Amy B
Written by:
Amy B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M
Employee Carrie F
Updated by:
Carrie F

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