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Keeping your trailer visible after dark is easy with this sealed LED identification bar. At 14-15/16" long, it uses three 3/4" diameter red LEDs that shine brighter and cleaner than old filament bulbs while drawing just 0.047 amps at 12.8V. Each diode is built to last up to 50 times longer than an incandescent bulb, so you get years of reliable light without worrying about burned-out filaments or dimming over time.
Rain, road spray, or full submersion — this light bar is ready for it all. The polycarbonate housing and red lens are sonically sealed into one waterproof unit, keeping moisture out so the LEDs and circuit boards stay protected. Whether it’s mounted low on a trailer or near a boat ramp, water won’t sneak in or corrode the internals.
Wiring doesn’t need to be complicated. This ID bar uses a simple two-wire pigtail setup — black for power, white for ground — making connection quick and foolproof. With a 52" wire lead, you’ve got plenty of length to reach your harness without splicing short runs or adding extensions.
This light mounts flush to the trailer surface using its molded black base, creating a clean, low-profile look that stays put through vibration and heavy use. The durable polycarbonate housing resists cracks, chips, and sun wear, while the 8-1/2" mounting hole centers make alignment easy. It’s DOT compliant and P2 rated, so it meets lighting standards right out of the box.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today on our trailer we're going to be taking a look at the Optronics Identification Light Bar for trailers over 80" wide, part number MCL922RB. These lights are sonically sealed and waterproof so they are fully submersible. They're made out of polycarbonate, the lens and the housing. They last 50 times longer than an incandescent bulb, they're more efficient, brighter, and they take less power. There are no bulbs to replace and no brittle filaments to break. They are designed to be surface mounted, the hardware is not included.
Comes with a 2 wire pig tail, and they are DOT compliant. The light is 14-7/8" long, 1-1/4" tall, by 1" deep. It has 3 3/4" diameter red LEDs which is designed for trailers that are wider than 80" wide. To begin our installation, we've removed the old 1 already and we have our wires sticking through. This comes with a nice long pig tail, but we're not going to need all that length so we're going to go ahead and just cut them off, then we'll strip back our wires, then we'll push them back through the hole. It does come with 2 pre-drilled holes, but it does not come with the hardware so you can either use a self tapping screw, or in our case, we're going to use 2 machine screws, and nuts, and lock washers.
Just place it through the hole, our lock washer, then our nut, and we'll repeat that on the other side. Then we'll take a pair of pliers, hold the backside, and we'll snug them up. You want to be careful you don't over tighten them because you can crack the light, it's plastic. We'll go ahead and attach our white to white. Strip them back. We're going to use some heat shrink butt connectors that are available on our website, part number DW05744-10.
Crimp our white to white. Strip back our brown wire, which is our taillight, running light, and the black wire from our lamp. Butt connector on that one. Now we can heat them up. Going to help you seal out any kind of moisture and corrosion.
Now we'll tie up our wires, snip off the excess. That's going to do it for our look at and install of the Optronics Identification Light Bar for trailers over 80" wide, part number MCL922RB.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Long leads and works as described. Really not anything bad to say.
bright, durable, good product
Still working great one year later.
Working great I have had it on my 2015 truck, now it's on my 2017 truck
this Light has worked great for my boat trailor. was a good purchas
Should label wires which is + and negative/ground wire
Products exactly as described. Had multiple parts and fit perfectly.
Very bright and looks great. Wish it came with hardware though.
Great light, plastic housing is built better than I thought it would be good product
Fastest shipping #1 A+
Seems good for the price. Hopefully they will last longer than what was on the trailer before. If they made a version of this with a metal body in stead of plastic, it would be a five star product (though much more expensive).
I liked it so much, when I broke the light, I bought a replacement.
These lights are bright east to hookup and waterproof..
Have seen many of this style on trailers ,,,put one in inventory just to be prepared !
Housing is not deep enough to keep from pinching the wires against the diode red plastic. Had to modify before mounting.
Bright LEDs and rust resistant. screws needed for installation not included
Product worked great as advertised. LEDS are much brighter than the standard bulbs
Very good low profile light bar, has stood up very well in its first year
Easy installation. Has held up well and is small enough to remain close to the trailer, so it's less likely to be bumped or broken.
Great service
Haven't installed yet but quick shipping and product was exactly what is advertised. Hooked one up to a battery to see how bright they was and all I got to say is put some sunglasses on before you do. Will try to update later with pics after install
Item was as described , affordablly priced and a perfect replacement for my old lights ,, arrived on time ,, will do more business with etrailer in the future
This product is very useful in that it doesn't take up much room, comes wired and has LEDs.
BTW, every product I've purchased from etrailer was of good quality and worked as advertised.
They have worked great. No complaints. I use in Pacific Northwest on a utility trailer. I would buy again. Easy to mount and wire.
Br
8/30/2019
The lights are working great. There have been bumps and scraps and the lights have not failed. I am very pleased.
Ordered this before they are great, I switched out the red and put amber.
Scott
1/28/2024
Perfect
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Rich M.
5/22/2019
I love this little light setup. I like it so much, when I broke the first on by impact, I bought another to replace it. Easy to wire, easy to mount and plenty bright enough to see from a distance.