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

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

Item # OPT77FR
Our Price: $17.41
Trailer Lights
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Shipping Weight: 0.07 lbs
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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 or call 1-800-940-8924 for expert service.
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  • Reviews (18)
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Optronics Trailer Lights - OPT77FR

  • License Plate Lights
  • Rectangle
  • LED Light
  • White
  • 2-3/4L x 1-3/8W Inch
  • License Plate
  • Non-Submersible Lights
  • Optronics

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.


  • Compact LED light illuminates your trailer's license plate
  • Surface-mounted diodes (SMD) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • 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 black ABS housing protects light against road debris and corrosion
  • Clear lens over white LEDs
  • Compatible with 12V and 24V DC systems
  • Surface mount with foam gasket - hardware included
  • 2-Wire design includes power lead and ground wire
  • DOT approved when properly mounted
    • Requires single light mounted at trailer center, or 2 lights mounted on each side


  • Overall dimensions: 2-3/4" long x 1-3/8" wide x 1" deep
  • Distance between mounting holes (center on center): 2"
  • Diodes: 2
  • Power draw at:
    • 12.8V: 0.139 amps
    • 24V: 0.027 amps
  • Lifetime warranty on LEDs

Optronics LPL31CBB LED Mini License Light Dimensions

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

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

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

Video Transcript for Review of Optronics Trailer Lights - License Plate Lights - OPT77FR

Michael: Hi there, I'm Michael with Today, we're going to take a quick look at this mini LED trailer license plate light.This is going to be a great way to illuminate your trailer's license plate. It would be a great replacement for an incandescent light, if one has gone out or whatever the case may be, if you're adding a light onto your trailer for the license plate, this is a great option. This is compatible with 12 volt and 24 volt DC systems. It does have a surface mounted diode or SMD construction. So the LED circuit board on board is going to be very resistant to shock and vibration.

It's also going to help with improved heat distribution. If you're not familiar with LEDs, they are going to be a far superior replacement than incandescent lights. One, because they're more efficient. So they'll provide more light with less power.This unit here is going to only draw about 0.139 AMPS on your 12 volt system and a 0.027 AMPS on your 24 volt system and it's still going to provide a nice bright light, which I'll show you here in a moment. The LEDs don't have any brittle film in them.

So you're not going to have to replace the bulbs. They last about 50 times longer than your incandescent lights. This one comes with a lifetime warranty on the LEDs. So again, they just don't go out like your incandescent bulbs. So these are going to be a great replacement for you, if you're replacing.This does have two of those LEDs or light emitting diodes covered with a clear lens.

So you're going to get a nice white light coming from those LEDs. It also has a durable black BBS housing to help protect the light against road debris and corrosion and different things that you encounter as you're going down the road.This is a surface mount option so they've included a little gasket here for you so that you can mount this in place. They also have included two screws to get it mounted. So should be very easy, you just need enough room for the wires to go back and connect to your wiring.This is a two wire design. One wire will be your power lead.

The other will be your ground. It doesn't matter which one is which, just as long as one is one and the other is the other. This is a Department of Transportation approved light, depending on how you have it mounted. So if you're only going to use one light, you want to make sure that it is mounted right at the trailers center, or if you're using two lights mounted on each side. Our overall dimensions here, when we're looking at the light, overall length is going to be right at about two and three quarters of an inch. Overall height . I can try and get this wherever it's going to show best for you. You want to call it about one and three eights of an inch, and then our depths looking at right about one inch, the amount that it's going to stick out.Now, our mounting holes are pre-drilled here. You can see those are separated from center to center, right about two inches. So keep that in mind when deciding if this is going to work for your application or not. And I do want to show you how this light functions, so I'm going to hook up some power to one and then ground to the other.You can see that light is on. Turn off the lights in the studio here. You can see that is a nice bright light. So it's going to light up your license plate on your trailer really well, and it's not going to draw much power at all. So like I said, it is going to be a great option for those of you who are wanting to replace an incandescent light, or if you're just adding a light onto your trailer so that your license plate is illuminated at night to make sure that you're road legal and this is going to be a great option for you.So that's going to complete our look for today. Again, I'm Michael with Thanks for watching.

Customer Satisfaction Score:

Customer Reviews

Mini LED Trailer License Plate Light - 2 Diodes - Clear Lens - 12V/24V - OPT77FR

Average Customer Rating:  4.7 out of 5 stars   (18 Customer Reviews)

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.


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


Good service, very fast at processing online orders, huge selection. Will do business with again in the future.


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.


etrailer once again knocked it out of the park once again with quality and customer service!!!


Okay light too expensive for what it is


As ordered


Great, puts out plenty of light, easy to install, should last a long time.


Better than great.





Being plastic with stand up to the weat her








See what our Experts say about this Optronics Trailer Lights

  • 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...
  • 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...
  • 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...

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Info for this part was:

Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Michael B
Installed by:
Michael B

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