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 round Fusion LED light throws out a clean, intense glow that makes your trailer easy to see from every angle. With 20 diodes working together, it handles stop, tail, turn, and backup functions in one sealed unit. The LEDs last up to 50 times longer than incandescent bulbs and draw less power while still putting out a brighter light. At 12V, you get full output without worrying about replacing filaments or losing brightness over time.
No need to worry about rain or boat launches—the housing and lens are sonically sealed into a single waterproof piece. That makes the light completely submersible and keeps moisture from reaching the electronics. The LED circuit board uses surface-mount technology for better shock resistance and heat control, so it stays reliable even when the road or trail gets rough.
Once installed, this light sits flush for a smooth, factory-style finish. The built-in black flange keeps everything looking neat without extra trim or adapters. It measures 5-1/2" in diameter overall with a 4-5/16" light face and just 1" of depth, so it fits tight spots easily while still giving full illumination across the lens.
Everything is already wired for quick setup—black for tail, red for stop/turn, brown for backup, and white for ground. The 8" leads give you room to make clean connections without guesswork. With no bulbs to replace and no extra modules needed, it’s a straightforward install that’s ready to work right away.
This light meets DOT and FMVSS 108 requirements for automotive lighting, so it’s built for the road and legal wherever you travel. With its red outer lens set inside a clear white lens forming the signature “X” backup pattern, it delivers standout visibility that looks sharp while keeping you compliant every mile.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at this Optronics Round Fusion X LED Hardwired Stop Tail Turn and Backup Trailer Light. Has a red and a clear X lens. Now, this is a round trailer tail light, has a nice, smooth, bright red exterior. Serves four functions, and I'm gonna go through those functions.
I have it hooked up to some 12 volt power, just to show how bright the light is. But we'll first do a tail light function. So if I turn on my 12 volt power, you can see the tail light comes on. Go ahead and turn off. And there, you can see the tail light function.
And then when you apply your brakes, you'll be able to see that that outer band of light will brighten up. And then, when you hit your turn signals, you can see that outer band will flash. And then what's really unique is the inner X portion there is white LEDs. And I'm gonna show you when you go into reverse what happens. You'll see that the white X comes on to let you know that you're in the backup mode.
Now, this is 20 LEDs. It is sonically sealed waterproof housing. Gonna disconnected it here so we can look at the back of it. But if you look at the back, it's sonically sealed waterproof housing and lens unit. It is submersible.
It does use the durable SMT technology, which is Surface Mount Technology. It's a construction of the LED circuit board. It'll better withstand shock and vibration, allows for improved heat distribution. And they do use LEDs in this light, which make great replacements for incandescent lights. They'll last 50 times longer. LEDs are more efficient, 'cause they'll provide brighter light with less power output. And of course, no bulbs to replace or brittle filaments to break. And you do have a lifetime warranty on the LEDs. The red lens you can see is set inside the white lens with the red and white LEDs. The red lens with the red LEDs is for the tail light stop and turn. And then the clear X lens here has the white LEDs for your backup light. It is a flush mount design. Has the built-in black flange here with the screw holes. Now, the hardware to install this is not included. You would have to supply that. You can see the back of the light, it is hardwired ready to install the wire length on these pigtails, about eight inches. This light is DOT, Department of Transportation, compliant. It will meet the Federal Motor Vehicle Safety Standard 108 requirements for automotive lighting. Now, on the back you'll have four wires. You'll have your black, that's for your power, your tail light. You'll have your white, which is your ground. You'll have your red, which is your stop and turn. And then you'll have the brown wire, which is your backup. Now, the voltage on this works on 12 volt system. Few dimensions. We're gonna give you you the overall diameter on this light, including the mounting edge. Mounting flange is five and a half inches in diameter. Depth on it is only about one inch deep. And the light face, just the light itself, if we measure the diameter there, is about four and a quarter inches. But that should do it for the review on the Optronics Round Fusion X LED Hardwired Stop Tail Turn and Backup Trailer Light.
Ratings & Reviews

Brooke M.
1/22/2025
Thats great! Glad you like the lights. I am intrigued by your username. Are you a rescue diver currently?



Rescuediver1
1/23/2026
Still working great. Bright, very noticeable.

Rafael
9/29/2025
The lights have been working Flawlessly since the installation was completed.

Rafael
11/27/2025
Awesome product still looks and function great. I used this product to have additional break lights at the rear of the camper along with having back up Lights.

Gwendolyn Y.
5/16/2025
Better to light the way! I'm glad the light worked out so well for you, Rob.
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.






Kate F.
2/11/2026
The light looks great Deven! I really like the design in the middle, spruces things up =)