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If you like the clean, timeless look of chrome but still want a dependable light, this rectangular 3-3/4" x 2-1/4" Peterson clearance or side marker light fits the bill. The chrome-plated ABS housing gives it that polished finish while holding up well to everyday use. Behind the red lens sits a premium 194 incandescent bulb that delivers up to 15,000 hours of light, drawing just 0.25 amps at 12V. It’s built for those who prefer the warm glow of a traditional bulb paired with solid construction.
No need to fight with complicated wiring setups. This light mounts flush using the included stainless steel screws and only needs a 1-1/4" diameter socket hole. The twist-in socket has a straightforward 2-wire design—one lead for power and one for ground—making it easy to connect and secure. It’s a clean, no-fuss install that looks neat once in place.
Durability matters when your lights face weather, road grime, and vibration. The chrome-plated ABS housing resists cracking and corrosion, keeping the red lens bright and intact over time. It’s DOT compliant and carries a P2 rating, producing a 90-degree beam spread (45 degrees on each side of centerline) that meets clearance or side marker standards.
When it’s time to replace older lights, this unit drops right into place without extra drilling or adapters. It’s an exact match for Optronics #MC71RS and Grote #47052, so you can refresh your setup with confidence knowing it fits perfectly and lines up with existing holes spaced 2-11/16" center to center.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're gonna take a look at the Petersen clearance or side marker trailer light with the red lens and the chrome plated base. Now this is an incandescent trailer light that will function as a clearance or side marker light when properly mounted. The premium bulb provides up to 15,000 hours of light, and it's all in this durable chrome plated ABS housing. Has the red lens that's over the incandescent bulb, and this light is compatible with 12 volt DC systems. It is a flush mount design to the trailer, with the included stainless steel screws, and it requires about a one and a quarter inch diameter socket hole for a flush mount installation. It is a twist in socket.
You can see twisting it, you can remove it, and here's your bulb, and then to put it back in, you just turn it and twist it into place. It does contain two black wires, a lead and a ground wire, and it doesn't matter which is which. It's not polarity sensitive, so you can pick either connection to either wire.It is a DOT Department of Transportation compliant light, P2 rated. It is made in the USA. A few dimensions on this.
Overall length on the light including the base is right at three and three quarter inches. Height on it is two and a quarter inches tall, and the total depth on it from the very end of the socket here to the face is going to be right at two and one sixteenth inches. Distance between the mounting holes where the screws are is going to be two and eleven sixteenths inches, and the bulb type that it uses is either a 194 or a 193 bulb. Power draw for this light at 12 volts is 0.25 amps, and last thing I want to do is we're going to hook this up to some 12 volt power just to show you how bright it is. And as I mentioned, they're both black wires, so it doesn't matter which wire is power and which one's the ground.
We got it all hooked up.Go ahead and turn the power on, and you can see the light comes on. I'll go ahead and turn off the overhead lights, and there's your clearance or side marker tail trailer light. Go ahead and turn back on the overhead light. Disconnect our wires. But that should do it for the review on the Peterson clearance or side marker trailer light with the red lens and the chrome plated base..
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Gwendolyn Y.
1/22/2026
WOW, That's a pretty awesome ride, Dale! I also shared this with my dad because I know he will think its pretty cool too.