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
Need for later
Bright light for tail, brake/stop, and back up are an excellent upgrade to the trailer.
Good products exceptional service
Awesome tail lights! Bright for brake lights and bright for reverse lights backing up
This product is the missing link of the trailer market. There is no equivalent.
Shipping to Canada was fast and hassle free.
I strongly recommend the product and the seller.
Great Lights, Diodes all remaining bright, Would Highly recommend
Awesome tails much nicer updated look on my service truck
One of the best trailer light kits I've ever had. Perfect fit for my trailer. Being able to have back-up lights now is a game changer and long overdue.
Very well made and I have no reservations that these lights will last a long time. I like the fact that they aren't overly bright while in running mode. Don't want to give an impression that brake lights are on until they are. When they are applied and ON there is no mistaking. Wonderful lights. Affordable and well made.
I bought a similar product on eBay and this one is much brighter, well worth the extra money!
Good all-in-one lights replaced my old old incandescent lights. Really visible. Works great. Plastic housing seems like it could be susceptible to damage.
These work great and fixed the problem with my truck and its trailer management system. I was having issues with a cheaper set I ordered from another site. My truck's fancy trailer management system would think there was a fault and cut power to the trailer lights. I replaced the lights with these and so far so good. Thank you!
Lights worked perfectly and it was very easy to I stalled.
You always have what I’m looking for. Good product, and got it quickly
Great product. Easy to install. Definitely recommend this product.
Great quality light. Replaced old incandescent lights with these LED lights on my boat trailer. They are much brighter.
Had to wing it since the wires weren't all the same color, but it appears this was the exact part I needed!
Wires not identified you have to go to website to confirm which wires are what. Other lights I have purchased were tagged
Exactly what I was looking for & super fast response along with shipping
Great upgrade in brightness for my 2019 Keystone Cougar. Wiring was accurate. Always the only issue for me is clean caulking...but that's a me issue
Added this to our Arcimoto that we converted to a flatbed. The electronics is driven by Pulse Width Modulation coding in an MRS Module and we don’t have the code. So we had to buy these with less draw (due to less LEDs). They work perfectly. The backups work perfectly (which it had none but the wiring was there). Probably the best lit Arcimoto in the world :) High quality. Fit in the grommet and bracket from another set of lights that had too much draw - so that shows these are very standard size. Pics show no backup, then backup. They are bright!
These are a perfect replacement for the old lights on my Aliner. Had them wired up in not time. The only thing that presented a problem is that they mount flush. This means that the wires have to line up with wiring holes on a camper. With an Aliner there is one hole for each side, but they are offset to the right. My solution for this is to make risers with cutaways for the wires to run in to the offset holes. I'm using plastic cutting board material to make the risers.
Great price, good quality. Worked great to rig up my RV receiver hitch toolbox with lights.
Quick shipping and everything arrived in great condition. These are going to look great on the back of my 2005 Jeep TJ
Love the super crisp color temperature and brightness and the reverse light. I've used a ton of Optronics products over the years and have never had one fail. I think these might be my favorite trailer lights yet!
Excellent service! Madison was very he lpful.
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.






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.