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Swapping out old bulbs for LEDs makes a big difference in brightness and reliability. This 1" diameter red light uses a premium LED rated for up to 100,000 hours of operation, so you won’t be changing bulbs anytime soon. It runs on 9V – 14V DC with only 0.06 – 0.08 amps of draw, giving you strong visibility with very low power use. The LED is also vibration resistant, which helps it hold up through rough roads and repeated use.
If your trailer ever sees water, this light is built to handle it. The lens and housing are sealed together into one solid unit so moisture can’t sneak in. TecSeal urethane potting protects the circuit board far better than common epoxy potting, keeping out water and dust completely. With an IP68 rating, it’s both waterproof and submersible—ideal for trailers that get dunked at the ramp or face heavy rain.
Safety isn’t just about brightness—it’s about being seen from every angle. This PC-rated light throws a 180-degree arc of red light, clearly visible from the front or side. That wide coverage means it can act as both a side marker and a clearance light when mounted properly, so you get full visibility without needing two separate fixtures.
This small round light doesn’t just look good—it’s built to last. The housing uses automotive-grade polycarbonate that resists UV damage, impacts, and wear. Inside, the circuit board is military-grade for long-term durability and consistent performance over years of use. It meets or exceeds FMVSS 108 standards for lighting performance.
Installing this light is straightforward. It fits into a standard 3/4" diameter cutout using the included grommet, so it sits cleanly and securely. A 9" pigtail with 0.180" bullet connectors plugs directly into your trailer’s matching connectors—no rewiring or special tools needed. Compact at just 1" diameter by 7/8" thick, it tucks neatly into tight spaces while giving off plenty of light where you need it most.


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer.com. Let's take a look at this Submersible Red LED Mini Clearance or Side Marker Trailer Light. With this little one inch round, waterproof LED mini trailer light, you're going to be able to haul safer by alerting other drivers of your trailer's position and direction of travel. As you can see, I already have this connected to power. You can see just how bright it is with my bright studio lights on.
But let me go ahead and turn my studio lights off here real quick, just to give you a better idea of what this is going to look like in darkness and can just see the light on my table here. Let me zoom out real quick just so you can see it at a distance. So this light's going to function as both a clearance and rear side marker light when properly mounted. This one red LED underneath a red lens is rated for up to 100,000 hours of operation. It is energy efficient, long lasting and vibration resistant.
Now this is a PC rated light, meaning it produces a 90 degree angle of light on either side of its center line for a total of 180 degrees of coverage. The beam pattern can be clearly seen when you are standing directly in front of the light as well as when you are standing on either side of the light. Rather than buying side marker and clearance lights separately, you can mount this single PC rated light at a 45 degree angle on the rear corner of your trailer to act as both. This sealed waterproof light includes a durable, polycarbonate housing and UV resistant lens. The circuit board is of a military grade construction and the urethane potting offers a better protection than common epoxy potting.
This has an IP rating of 68. This is 12 volt DC compatible. As you can see, it's a two wire pigtail with a 0.180 male bullet ends. And I measured the wire earlier before our time together, and from the end of the plug all the way behind the light here, we're sitting at about 11 and a half inches of length. So this is a recessed mount insulation with an included grommet and insulation does require a three quarter of an inch diameter cutout.
Let me pull out my ruler here real quick and just give you the measurement of the overall thickness. As you can see, we're sitting right at seven eights of an inch. And if you are looking for additional measurements that I did not cover with you today, on this product page, we do have a diagram with some other measurements that you might find helpful. And this is going to meet or exceed FMVSS 108 standards and this does have a limited lifetime warranty. Well, that's going to wrap up our real quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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Ratings & Reviews

Nick S.
12/1/2025
That is great to hear! I am glad the process was easy and I hope the install was as well. It looks great on your vehicle!

Mike L.
2/18/2026
The pigtail wires are 16-gauge which is typical. Hope that helps!!
Info for this part was:
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Mike L.
4/30/2026
We're glad to hear that, good job!