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When you just need a dependable light that shows up clearly every time you hook up, this red incandescent trailer light gets the job done. At 4" long x 2-1/16" tall x 1-3/32" deep, it’s the right size for most setups that call for a clearance or side marker light. It’s P2 rated, producing a 90-degree spread (45 degrees to each side of center) so it performs as either a clearance or a side marker light when properly mounted. The red snap-on acrylic lens keeps the beam bright and uniform, and it’s backed by a 3-year warranty for extra peace of mind.
If you’ve ever had to mount separate reflectors just to stay legal, you’ll appreciate how this one is built. The integrated reflex reflector means you don’t need to add another part for compliance or visibility. It keeps things cleaner and simpler while still meeting DOT requirements. Whether you’re wiring up a new trailer or just replacing an old light, everything you need for function and reflection is in one compact housing.
There’s no guesswork with the wiring. It uses a simple two-wire design—black for power and white for ground—with 0.156" female barrel connectors already attached. The 12V setup draws only 0.2 amps at 12.8 volts, making it easy on your trailer’s electrical system while delivering reliable light output.
When you’re ready to install, this light surface mounts directly to your trailer body with mounting holes spaced 3" on center. The black ABS housing is tough enough for daily use and resists cracking or fading over time. The oblong shape keeps things low-profile while staying visible from the right angles so other drivers see your signals clearly and consistently.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this trailer clearance or side marker light with reflector. This is a DOT compliant incandescent trailer light, that's gonna serve as either a clearance light, or a side marker light when properly mounted. This is P2 rated, which means it's gonna produce a 45 degree angle of light to either side of its center line, for a total of 90 degrees of coverage. So the beam pattern can be seen straight on, but it's not gonna be as clear from the side. So this can work as either a side marker light, or a clearance light, but it cannot function as both, as you wanna make sure that you get it mounted properly.
This does have the red snap on acrylic lens over your 194 incandescent bulb, and that bulb can be easily replaced, if it ever goes out. The built-in reflector is going to remove the need for a separate reflector. So as I turned the light off there, you can see, we are going to have a bit of a reflective capability coming through. This does have a durable black ABS housing, so it's gonna hold up really well for you. This is compatible with your 12 volt DC systems.
It's gonna draw about 0.2 amps on your 12.8 volt system. It does have the two wire design with the 0.156 female barrels, so you can get this plugged right in place. This is a surface mount. The hardware to get this installed is not included, but I will give you a few measurements here, so you can see if this is gonna work for your application. Our overall length, it's gonna be right at four inches, our height, looking at just over two inches, we'll call it 2 1/16 of an inch tall, and then our depth, again, just over one inch, we'll call it 1 1/16 of an inch.
And then our mounting holes, center to center, are right at three inches. So if you are needing to replace your trailer's clearance or side marker light, this is gonna be a good option for you. Personally, I like the newer LED style. We have a lot of options for those here at etrailer.com. A lot of them are sonically sealed, so that they're submersible, so you don't have to worry, if you're putting them on your boat trailer, getting wet and that sort of thing.
This is not waterproof, so just something to keep in mind, depending on what you need. We do have lots of other options available here at etrailer.com. So that's gonna complete our look for today. Again, I'm Michael with etrailer. Thanks for watching..
Ratings & Reviews
Louis
8/30/2026
Great
Jerred H.
8/30/2026
Susan
11/11/2025
This marker light is still working. I have no complaints.
Info for this part was:
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Christopher H.
10/1/2026
Glad this worked well for you Al! Appreciate you including the photo.