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Older bulbs fade fast and burn out, but this round LED clearance or side marker light gives you long-lasting brightness without the power drain. It uses just 0.045 amps at 12.8V while delivering a clear amber glow through its durable polycarbonate lens. The single LED diode is built with surface-mount technology for better heat distribution and vibration resistance, so it stays reliable for years with no fragile filaments or bulb changes needed.
Moisture is no match for this light’s construction. The housing and lens are sonically sealed into a single waterproof unit, keeping water out and protecting the internal circuit board. Whether it’s mounted low where road spray hits or used on a trailer that sees regular submersion, the sealed design keeps the light working dependably without corrosion or shorting issues.
When you want a solid fit that won’t shake loose, this light’s recessed mount and locking clip deliver. Installation requires only a 2-3/4" hole, and the built-in flange sits flush for a clean look. A foam gasket helps form a weathertight seal, while the locking clip secures the PL-10 plug connection to reduce vibration over rough roads. It’s a simple, snug setup built to last.
A P2-rated beam gives you 45 degrees of illumination to each side of center for a total of 90 degrees of coverage—ideal for use as either a clearance or side marker light. That focused spread helps other drivers see your trailer clearly from head-on angles, boosting visibility and safety at night or in low-light conditions.
No need to add extra parts—the built-in reflex reflector handles reflection duties without a separate piece to mount. The light accepts an industry-standard 2-prong PL-10 plug (sold separately), making wiring simple and compatible with common trailer setups. With its combined reflector, sealed body, and efficient LED power draw, it’s a compact, reliable solution for keeping your trailer well-lit and compliant.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today, we're taking a look at the Optronics Amber LED Clearance or Side Marker Light. This round trailer light serves as either a side marker light or a clearance light for your trailer. It features the built-in reflex reflector, which eliminates the need for a separate reflector and it also features durable surface mount technology when it comes to the construction of the LED circuit board. That design is designed really to better withstand shock and vibration and allow for improved heat distribution. The LEDs, overall they make great replacements for incandescent lights. They last longer, they burn brighter, they're much more efficient.
You don't have to worry about replacing bulbs or worry about brittle filaments with LEDs.This one has a really nice amber polycarbonate lens with a singular white LED. Completely sealed when it comes to the lens and the housing, so it's sonically sealed, features a waterproof housing and lens unit that is submersible. It's a recess mount installation with a built-in mounting flange. It also comes with a foam mounting gasket that creates a weather-tight seal. Your installation area does require a two and three quarter inch diameter hole for this to sit in and then you'll notice that we have three pre-drilled mount holes.
Mounting hardware not included. When it comes to the wiring, it's designed to accept an industry standard two-prong PL-10 plug. That is sold separately and available at etrailer.com. It has this really nice lock clip that creates a secure connection and helps reduce vibration.I'll show you how that functions here in a moment when we hook it up to our power source. This is SAE and Department of Transportation compliant.
It's a PT rated light. When it comes to the overall dimensions of the unit, I took a measurement from edge to edge, got an overall diameter of about three and three-eights to three and seven-16ths inches right in that area. Overall depth from very front to very back, including the clip was one and nine-16ths inches deep. Now, the overall depth once it's installed from the back of the flange right here to the front of the unit, it's only five-16ths of an inch deep, so it's a nice low profile unit. The mount holes are all separated along the center, apart from one another by two and five-eights inches.We're going to go and hook it up to power, that way you can see what it looks like with some power running to it.
We'll open up the clip. This is a PL-10 plug right here. Fits into the prongs here on the backside of the light. Then the clip comes over, snaps into place. That's that locking clip that we talked about. I'll go ahead and run our wires to where they need to go. We'll also be able to turn off our overhead lights so you can see it in a low light setting. You can see here it sends out a nice bright consistent signal. Again, this light contains one LED. When it comes to the power draw at 12.8 volts, it's 0.045 amps, and Optronics puts a lifetime warranty on the LED. That's going to do it for today's look at the Optronics Amber LED Clearance or Side Marker Light.
Ratings & Reviews
Rick
10/17/2026
They have held up well. These were installed on a 2007 motor home. The LED lights are a nice upgrade. Good product. No issues in the first year.
Trent G.
10/17/2026
Phillip
5/14/2026
Optronics lights are still going strong!
Lazer S.
5/14/2026
Nick S.
9/15/2025
I will have to say this is a first! I have never seen these used in that way and it is the best thing I have seen all day! That is one of my favorite vehicles so I am glad they are working well and they look great.
Jess
10/7/2026
Still look great and work perfect. No fading on the lenses and bright as ever! Great choice.
Claire H.
10/7/2026
Jess
10/7/2026
Still look great and work perfect. No fading on the lenses and bright as ever! Great choice.
Claire H.
10/7/2026
Kashmar
5/25/2025
Side marker light is still going strong one year later! Great product
Brian
7/22/2026
Its just like the new one in our RV, same fit and finish, its like the manufacturer bought them from you!!
Heather A.
7/22/2026
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Mike L.
1/29/2026
Thanks, Roy! I'm glad we could help!