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If your trailer sees the water, this 3-3/8" x 1-1/4" x 2-3/8" light stands up to it. The gray housing and clear lens are sonically sealed into a single waterproof unit, making it fully submersible. That means no leaks, no corrosion, and no shorted circuits even after repeated launches or wet road trips. It’s built to keep shining when other lights give out.
When it’s time to replace an old or broken license plate light, this one keeps things easy. It uses a standard ear-mount base with holes spaced 2-3/4" center to center, so it matches many existing setups without drilling new holes. The surface-mount design keeps installation quick and straightforward—just connect it with an industry standard 2-prong plug.
This light uses a single incandescent bulb that delivers steady, bright white illumination for your plate. The power draw is only 0.2 amps at 12.8V, giving you reliable light without putting stress on your wiring. The bulb sits behind a tough polycarbonate lens and gray housing that resist impacts and UV wear for long service life.
No complicated wiring needed here. This light accepts an industry standard 2-prong plug (sold separately), making it simple to connect or swap out if ever replaced. It’s a practical setup for anyone who wants a clean install that’s easy to maintain later on.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we are looking at the Optronics Sealed Ear Mounted Trailer License Plate Light, part number LP97CB. This is a sealed waterproofed housing and lens unit. Heavy duty long life bulb, and surface mounts on 2 3/4 inch centers from the ear mounted base. It accepts industry standard 2 prong plug for many wiring options. Lets go ahead and add a power supply so that we can show you what the light looks like when it's lit up.
Now we'll turn the lights off so you can see what it looks like when it's dark. And there you have it for Optronics Sealed Ear Mounted Trailer License Plate Light, part number LP97CB.
Ratings & Reviews
After trying several items I purchased at the local repair shop, I finally ordered what I should have from the beginning! Worked like a charm. Now I know. Easy to install too. Definitely a repeat customer if the time comes.
Excellent supplier with an extensive inventory of products. I have learned to go to them "First" thus avoiding spending a lot of wasted time elsewhere searching without success,
fit right up on trailer same item - only place had reasonable price
Installed today and was perfect for rep air.
The tag light fits perfect. It works good, and was delivered fast. Goog price.
Efficient and quicker
as described, an exact replacement
exact replacement for my trailer , just what i was looking for
Great quality and fast shipping.
Th anks
Good product, perfect fit to original mounting holes.
Good product easy to install. This was fit as replacement on Featherlite horse trailer exact duplicate.thanks
It was a perfect fit. And shipping was quick.
Item arrived in good time, and I replaced the old own in 5 minute perfect fit and finish. Back in business. Thank you E Trailer for supplying great replacement parts.
Ordered because the measurements and looks matched what was currently on the trailer. Pulled of the old one and plugged in the new one and it worked perfectly.
Perfectly matched the one that leaked and needed replacement.
Woul have been nice if it came with the power connector as the old one is hard and brittle.
Perfect fit. No monkeying around to install or get it working.
Product was high quality and just like the M439 that I replaced. Excellent service from etrailer and shipping was cheap.
Was pleasantly surprised to receive the part so quickly. It was an exact match to the original license plate light for the Feather-Light trailer.
Accurate Descriptions, Easy to work with, Great Prices and Fast Shipping. Have used etrailer before and always the best. Buy with confidence.
Direct replacement for my 2008 Feather-Lite license place light. Worked perfectly.

Chris S.
1/2/2018
Working great. No problems
The installation of the overhead vent cover was simple, easy and worked fantastic. Thank you. I have yet to install the light, but when it gets warmer, I am thinking it should be easy as well. Thank you for being very quick in the order processing as well.
Great License plate light and mounting frame

Alan R.
10/5/2016
The light works and looks great.
Very happy will use you more often. Highly recommended.
I had been looking for this exact license plate light for my snowmobile trailer all over the place and no one had it or anything like it. For the heck of it I Googled " license plate light " and it brought up your site. Fortunately you guys had it and I was able to get it within a couple days.
Great site, great service.
Ken

Ken P.
8/13/2015
Product was exactly what I was looking for and was the exact replacement for the damaged one on my trailer. Very pleased with the light and the service.
perfect fit.
Info for this part was:
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Ken
5/12/2024
Still working great!!!