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Mini LED Trailer License Plate Light - 2 Diodes - Clear Lens - 12V/24V
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Optronics

Mini LED Trailer License Plate Light - 2 Diodes - Clear Lens - 12V/24V

Part Number: OPT77FR
43 Reviews | 6 Questions
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$21.51
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optronics trailer lights license plate non-submersible
optronics trailer lights license plate non-submersible opt77fr
optronics trailer lights license plate non-submersible
optronics trailer lights license plate 2-3/4l x 1-3/8w inch
optronics trailer lights license plate mini led light - 2 diodes clear lens 12v/24v
optronics trailer lights license plate non-submersible mini led light - 2 diodes clear lens 12v/24v
optronics trailer lights license plate non-submersible opt77fr
optronics trailer lights license plate 2-3/4l x 1-3/8w inch mini led light - 2 diodes clear lens 12v/24v
optronics trailer lights non-submersible 2-3/4l x 1-3/8w inch opt77fr
optronics trailer lights license plate
optronics trailer lights license plate non-submersible opt77fr
optronics trailer lights license plate 2-3/4l x 1-3/8w inch opt77fr

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2-3/4" x 1-3/8" Rectangle. Mini LED trailer light illuminates your license plate. Durable ABS housing protects light against road debris. Surface mount with foam gasket - hardware included. 2-Wire design. Great Prices for the best trailer lights from Optronics. Mini LED Trailer License Plate Light - 2 Diodes - Clear Lens - 12V/24V part number OPT77FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - OPT77FR

Highlights

  • Bright Plate Illumination: Two white LEDs clearly light your trailer’s license plate.
  • Low Power Draw: Uses only 0.139A at 12.8V or 0.027A at 24V for efficient operation.
  • Built to Last: LEDs last 50 times longer than bulbs—no filaments to break or replace.
  • Compact Fit: 2-3/4" x 1-3/8" rectangular housing mounts easily with 2" hole spacing.
  • Tough on the Road: Black ABS housing shields against debris and corrosion.
  • Road Legal Setup: DOT approved when properly mounted for compliance.

Features to know about

Brighter Illumination for Clear Plate Visibility: Dual-Diode LED Light

Keeping your license plate visible at night is simple with this compact LED light. It uses 2 surface-mounted diodes (SMD) that deliver bright, even white light through a clear lens. At 12.8V it draws only 0.139 amps, or just 0.027 amps on a 24V system, so it stays efficient while shining clean and steady. The LEDs last up to 50 times longer than incandescent bulbs and require no replacements—no filaments to break or burn out.

Built to Handle Road Use: Durable ABS Housing

Road debris and vibration are no match for the sturdy black ABS housing that protects the light. The sealed circuit board better withstands shock and heat, keeping the electronics safe from everyday wear. That means less worry about cracks or corrosion over time and more dependable performance mile after mile.

Simple, Secure Mounting: Surface-Mount Design with Foam Gasket

Installation is straightforward thanks to the surface-mount setup and included foam gasket. The light measures 2-3/4" long x 1-3/8" wide x 1" deep, with mounting holes spaced 2" apart (center on center). Just connect the 2-wire design—one power lead and one ground—and it’s ready to go. Hardware is included for a snug fit and a clean look against the trailer frame.

DOT-Compliant Setup Made Easy: Flexible Mounting Options

Meeting lighting requirements doesn’t have to be complicated. This light is DOT approved when properly mounted—either one centered above the plate or two lights positioned on each side. It ensures your trailer stays compliant while giving you flexibility in how you mount it for best visibility.

Long-Term Reliability: Lifetime-Backed LEDs

With LEDs rated for a lifetime of service, you can trust this light to stay bright without maintenance or replacements. It’s efficient, compact, and built to last, making it a solid upgrade for clear license plate lighting that won’t quit.

Specs

Dimensions

  • Overall dimensions: 2-3/4" long x 1-3/8" wide x 1" deep
  • Distance between mounting holes (center on center): 2"

Dimensional diagram of Optronics Mini LED Trailer License Plate Light showing 2-3/4 inch length, 1-3/8 inch width, and 2 inch mounting hole spacing.

  • Overall dimensions: 2-3/4" long x 1-3/8" wide x 1" deep
  • Distance between mounting holes (center on center): 2"

Electrical

  • Power draw at 12.8V: 0.139 amps
  • Power draw at 24V: 0.027 amps

Lighting

  • Diodes: 2

Warranty

  • Lifetime warranty on LEDs

LPL31CBB Optronics Mini LED Trailer License Plate Light - Black Housing - 2 LEDs - Rectangle - Clear Lens - 12V/24V







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Customer Satisfaction Score:

Ratings & Reviews

4.7

43 reviews
5 Stars
(33)
4 Stars
(8)
3 Stars
(2)
2 Stars
(0)
1 Star
(0)
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by:
I would highly recommend this this is one of the better license plate lights that I've ever owned and it's waterproof 100%. It pays to buy good quality products thank you very much e trailer
by:
Product is fine… service wasn’t up to par with what I expected. Needed item by a certain date… as such I paid for expedited guaranteed two day shipping since they said it would get it to me by when I needed it by… despite the order being in before the cutoff time to get the order out that same day… order didn’t get sent out until the following day which was putting delivery a day behind when I needed it. When I tracked the package and realized this was the case… rather than going to the lengths needed to get me my item by when I was promised by say sending out another unit overnight… they simply refunded my expedited shipping charges. Still didn’t get me my product by when I needed it and was guaranteed I would have it by.
by:
Small as expected. Wiring is right on par. However, it isn't all that bright which could be a good thing. The lens diffuser diffuses just enough light on the plate for the job to keep police somewhat happy. From a very short distance from the plate, the light gives an almost perfect wide angle "V". I'd say this works for my hauler.
by:
e.trailer has never failed, top tier Company to depend on for many products.
by:
etrailer once again knocked it out of the park once again with quality and customer service!!!
by:
Perfect replacement part, fits as well as the original.
by:
Daniel profile picture

Daniel

10/20/2025

Working well and illuminates license plate well

by:
Great, puts out plenty of light, easy to install, should last a long time.
by:
Works great, keeps things street legal.
by:
It is smaller than the one it replaces , but it is brighter than the one it replaces . Hopefully it is stronger than the one it replaced
by:
Better than expected...works great.
by:
Good service, very fast at processing online orders, huge selection. Will do business with again in the future.
by:
Okay light too expensive for what it is
by:
Should work well once installed
by:
As ordered
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Being plastic with stand up to the weather
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2007 Jeep Wrangler Unlimited
Product exceeds expectations!
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See what our Experts say about this Optronics Trailer Lights

Do you have a question about this Trailer Light?
  • Dimensions Of Mini LED Trailer License Plate Light OPT77FR
    Hey Mike, thanks for reaching out. The Mini LED Trailer License Plate Light # OPT77FR is 2-3/4" long x 1-3/8" wide x 1" deep. It has 0.2" diameter mounting holes that are 2" apart on center. I've included a picture showing these dimensions. Was there another dimension you were looking for? Let me know.
    view full answer...
  • What Are the DOT Requirements for License Plate Lights
    You'll only need a license plate light like the # OPT77FR directly over the license plate, on whatever side of the trailer that you're mounting the plate. What the 2 on each side is referring to is that you could use 2 lights on each side of the license plate if you wanted, or 1 directly over the center of the plate, but I can understand why the wording here is confusing. You can easily mount this under the # STL178RB you've already installed and make the trailer DOT compliant. I've linked...
    view full answer...
  • License Plate Light Recommendation for 1994 Wells Cargo Enclosed Trailer
    If you're just needing a license plate light then the Optronics LED Mini Light # OPT77FR is a great option. If you're needing a whole license plate bracket AND light then I recommend checking out the Command Electronics License Plate Holder and LED Light # 328-003-71BE instead. I also recommend picking up Heat Shrink Butt Connectors # DW05744-5 to protect your wiring connections. Attached are some videos for you to check out.
    view full answer...
  • What Is The Extra 2 Prong Wire Pigtail For Behind The Tail Light of the Rola Cargo Carrier?
    Yes, the 2 wires that you found behind the tail light of the Pod for Rola Enclosed Cargo Carriers # 10188 is for a license plate light if required. I would recommend using the Mini LED Trailer License Plate Light # OPT77FR so that you can run the wiring inside the Rola Carrier as the Rola specific light is no longer available.
    view full answer...
  • Are There License Plate Lamps For a Winnebago Profile View on a Mercedes Sprinter Chassis
    We do not have license plate lamps specific to your 2010 Winnebago Profile View on Mercedes-Benz Sprinter Chassis. We do have some light bulbs like the 1157 LED Bulbs # ARC93FR which fit your View and work for lights such as back-up, interior, or courtesy lights. But, not any that mention the license plate lamps. We also have lights for license plates, like the Mini LED Trailer License Plate Light # OPT77FR or Optronics LED Trailer License Plate Light w/ Bracket # LPL55CB. But, they are...
    view full answer...
  • Surface Mounted Taillight With Turn/Brake/Taillight/Reverse and License Plate Lamps
    We don't offer a flat surface mount lamp that would include the license plate lamp, but the Diamond Group # DG52721PB would provide stop/turn/taillight and the reverse lamp. For a license plate lamp, you can mount something like # OPT77FR above the plate or if you'd prefer a combo plate bracket/lamp, you could use # LPL55CB. Another option would be to use a surface mount lamp that isn't flat, but would provide incandescent stop/turn/taillight/reverse lamps and license plate lamp/bracket...
    view full answer...

Do you have a question about this Trailer Light?


Info for this part was:

Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Daron K
Edited by:
Daron K
Employee Ed W
Installed by:
Ed W
Employee Michael B
Installed by:
Michael B
Employee Brian T
Written by:
Brian T
Employee Amanda K
Updated by:
Amanda K
Employee Daniel D
Video by:
Daniel D
Employee Evan R
Video by:
Evan R

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