Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
This 4-5/16" round red LED light delivers clear brake, tail, and turn signals that stand out day or night. With seven diodes behind a durable polycarbonate lens, it’s more efficient and lasts far longer than incandescent bulbs. At 12.8 volts, it draws only 0.234 amps for stop and turn functions and just 0.033 amps for the tail light. That means bright, reliable lighting without stressing your wiring or draining power unnecessarily.
No need to worry about rain, washdowns, or launching a boat trailer—this light is completely waterproof and sealed tight. Its polycarbonate housing and lens are built to keep moisture out, keeping the LEDs safe and dependable no matter how wet things get. It’s designed for submersion, so it keeps working even in the toughest trailer environments.
The built-in weathertight connector protects wiring from corrosion and moisture where most lights fail first. It pairs with the AL45PWTB adapter (sold separately) to link to standard 3-prong plugs. Once connected, you get a solid electrical seal that won’t loosen or short out after a few miles on rough roads.
This light installs cleanly into a 4-1/2" diameter cutout using the A45GB grommet (sold separately). The recessed mount keeps it out of harm’s way while giving a factory look. If cutting a hole isn’t an option, there’s also an optional bracket (BK45BB - sold separately) that works with the same grommet for an easy exterior mount.
The tough polycarbonate housing resists impacts and wear from the elements, making it a solid choice for long-term use. The LEDs carry a lifetime warranty, and the housing itself is backed by a 3-year limited warranty—so you can count on this light to last mile after mile without dimming or cracking.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the Optronics LED trailer tail light. The round trailer tail lights serves 3 functions, such as your stop light, tail light and turn signal light. It's going to feature a sonically sealed water proof housing and lens unit that is submersible. It's a full LED system, LED's are going to make great replacements for incandescent lights. They're going to last longer, burn brighter, they're much more efficient. You don't have to worry about bulbs and you don't have to worry about burr filaments. When it comes to the construction, we're looking at a polycarbonate lens and housing.
The housing on the unit is going to be a grey color, the lens is going to be a red lens. This is designed to be a recess mount installation, with a mounting grommet. Grommets are sold separately. You can find them here at etrailer.com if you're needing one. The light will fit into a hole with a diameter of 4 and a half inches. Now, here on the back, it's got a really unique plug.
This is known as a weather tight connection point on the back. This does require an adapter part number AL45PWTB to work with the industry standard 3 prong plug. Now that adapter is sold separately and it's available here at etrailer.com as well. The light is department of transportation compliant. When we take a look at the dimensions, starting with the diameter, outer edge to outer edge, we're looking at a measurement of about 4 and 5/16 of an inch.
If we take a look at the thickness including the plug at the back, that's going to give us a measurement of 1 and 13/16 of an inch. Not including the plug, so just this portion up here, that's going to give us a measurement of about 3/4 of an inch. It's going to contain 7 diodes or 7 LEDs. The power draw for the stop and turn signal is 0.234 amps at 12.8 volts. For the tail light is 0.033 amps at 12.8 volts. Optronics is going to put a lifetime warranty on the LEDs.
We're going to go ahead and hook it up to our external power source, that way you can see what it looks like with power into it. Here we have that weather tight plug. Slides in right here and then it's got the locking tab. This is going to be the tail light function of the light. It sends out a nice consistent signal, allows plenty of light to come through. Again, it's going to contain a total of 7 LEDS. When we apply our brakes, you can see how the signal output increases for brighter light. It's also going to do that when we activate our turn signals. That's going to do it for today's look at the Optronics LED trailer tail light.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Victoria H.
3/8/2025
So glad to hear these worked out perfectly for you and they look good too, Steve!
Bob
2/18/2026
Evidently just fine. I traded my camper in on a new one and it was just fine during the inspection.
Michael B.
7/8/2020
Still happy with the lights. Have not had any problems with them whatsoever
Paul S.
2/19/2017
Fantastic....no problem at all.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Jesse M.
9/10/2026
Pratiquement tous les feux arrière à DEL enfichables Optronics ont la prise décalée sur un côté. Quel était le numéro de pièce du feu que vous remplaciez? Pretty much all of the Optronics plug-in LED tail lights have the plug offset to one side. What was the part number of the light you were replacing?