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Fusion LED Hardwired Trailer Light - Stop, Tail, Turn, Backup - Round - Red/Clear Lens - 14 Diodes
Optronics

Fusion LED Hardwired Trailer Light - Stop, Tail, Turn, Backup - Round - Red/Clear Lens - 14 Diodes

Part Number: OPT84NR
In Stock
$22.37
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4" Round. All-in-one waterproof trailer light serves 4 functions: brake, tail, turn, and backup light. Hardwired and ready to install. Red lens set inside clear lens. Flush mount with built-in flange for a finished look. 14 Diodes. Great Prices for the best trailer lights from Optronics. Fusion LED Hardwired Trailer Light - Stop, Tail, Turn, Backup - Round - Red/Clear Lens - 14 Diodes part number OPT84NR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (43)
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  • Videos (2)
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Optronics Trailer Lights - OPT84NR

Highlights

  • One Light, 4 Functions: Provides stop, tail, turn, and backup lights in one sealed unit.
  • Reliable In Any Weather: Sonically sealed, waterproof housing is fully submersible.
  • Longer Lasting LEDs: 14 diodes deliver bright light with less power and no bulb changes.
  • Handles Rough Roads: SMT circuit resists shock, vibration, and heat for longer service life.
  • Clean, Finished Look: Flush-mount flange gives a smooth, built-in appearance.
  • Road Legal: DOT compliant and meets FMVSS 108 lighting requirements.

Features to know about

Brighter, Longer-Lasting Lighting: 14-Diode LED Output

This round LED trailer light packs 14 diodes that put out a bright, even glow you can count on. Compared to older incandescent setups, the LEDs last up to 50 times longer and pull less power while giving off cleaner light. With 12V operation and no fragile filaments to worry about, it’s built for efficiency and reliability every time you hit the road.

One Light That Does It All: Stop, Tail, Turn, and Backup

No need for multiple lights or complex wiring—this all-in-one unit covers your stop, tail, turn, and backup functions in one clean setup. The outer red band handles the stop, tail, and turn signals while the center white LEDs take care of backup duty. The red lens set inside a clear lens gives it a finished look that’s both functional and sharp.

Built to Handle the Elements: Waterproof and Submersible

Water and vibration are no match for its sealed design. The housing and lens are sonically sealed into one waterproof unit, making it fully submersible for use in wet or harsh conditions. Its durable polycarbonate build and surface-mount technology (SMT) circuit board resist shock and help spread heat evenly so the LEDs last longer.

Easy Flush Mounting: Clean Fit and Ready to Wire

The light mounts flush with its built-in black flange for a smooth, finished appearance. It’s hardwired with an 8" lead and color-coded wires—black for tail, red for stop/turn, brown for backup, white for ground—so hookup is straightforward. With an overall diameter of 5-7/16" and a depth of 7/8", it sits tight without sticking out or snagging on anything.

Road-Ready Confidence: DOT and FMVSS 108 Compliant

You can trust this light to meet safety standards right out of the box. It’s DOT compliant and meets FMVSS 108 requirements for automotive lighting, giving you reliable performance that keeps you legal and visible wherever you drive or tow.

Specs

Electrical

  • Wire configuration: Black wire: tail; Red wire: stop/turn; Brown wire: backup; White wire: ground
  • Voltage: 12V

Dimensions

  • Overall dimensions with flange: 5-7/16" diameter x 7/8" deep
  • Light face diameter: 4-7/16"
  • Wire length: 8"

Lighting

  • Diodes: 14

Warranty

  • Lifetime warranty on LEDs

STL304MSHB Optronics Fusion Hardwired 4" Round Combination LED Trailer Taillight - Red/Clear Lens - Weathertight Plug - Black Flange





Video of Fusion LED Hardwired Trailer Light - Stop, Tail, Turn, Backup - Round - Red/Clear Lens - 14 Diodes
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultimate Overview of the Fusion LED Hardwired Trailer Light

Hello everybody, this is Jeff at etrailer.com. Today, we take a look at the Optronics round fusion LED hardwired stop, tail, turn, and backup trailer light with the red and the clear lens. Now, this round trailer tail light has a nice smooth, bright red exterior which will serve four functions, and I have this hooked up to some 12 volt power so I can show you those functions. Basically, I'll go ahead and turn on a 12 volt power and you can see there's your tail lights. We'll go ahead and turn off the overhead lights and now you can see the tail lights operating. When you do apply your brakes, you'll be able to see that it gets brighter when your brakes are applied.

And then when you apply your turn signals, you'll see basically that same section. They'll flash for your turn. And then the last function I wanted to show you would be the backup function. So let me get the backup function hooked up here. And with that hooked up, and then when you go into reverse, you'll be able to see the middle white LEDs light up very bright.

Lets everybody know that you're going into reverse. It is a total of 14 LEDs. Gonna turn off our power. Now, this is a nice sonically sealed waterproof housing and lens unit, which is submersible. It uses durable SMT technology, which is surface mount technology.

That's the construction of the LED circuit board. It'll let you better withstand shock and vibration and allows for improved heat distribution. Now, we mentioned these light uses LEDs, which will make great replacements for the incandescent lights mainly 'cause they'll last 50 times longer and they're more efficient 'cause they'll provide brighter light with less power output. And the nice thing is no bulbs replaced, no brittle filaments to break, and there is a lifetime warranty on the LEDs. The red lens you can see is set inside with the white lens in the middle, and it uses red LEDs and the middle lens is white LEDs for the backup light in the middle there.

It is a flush mount design, has the built-in black flange that goes all the way around. Now to install this, you can see the three holes here that you put screws in. The hardware to install this is not included. You would have to supply that. It is hardwired. You can see at the back ready to install. The wired length is about eight inches. And the wire configuration is the black wire is your power wire or your taillights. White is your ground. Red would be your stop and turn signal. And then the brown is your backup or reverse lights. This light is DOT, Department of Transportation compliant. Does meet the federal Motor Vehicle Safety Standard 108 requirements for automotive lighting. A few dimensions on this. This is 12 volt light, hooks to 12 volt. The overall diameter of this including the flange 5-1/2 inches. The depth on it front to back's right at one inch. And the light face, just the light itself without the flange included, is 4-1/4 inches. That's gonna do it for the review on this Optronics round fusion LED hardwired stop, tail, turn, and backup trailer light with the red and the clear lens.

Customer Satisfaction Score:

Ratings & Reviews

4.9

43 reviews
Review sort icon
4" Round. All-in-one waterproof trailer light serves 4 functions: brake, tail, turn, and backup light. Hardwired and ready to install. Red lens set inside clear lens. Flush mount with built-in flange for a finished look. 14 Diodes.

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Need for later



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Good products exceptional service



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Bright light for tail, brake/stop, and back up are an excellent upgrade to the trailer.



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Awesome tail lights! Bright for brake lights and bright for reverse lights backing up



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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.



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Great Lights, Diodes all remaining bright, Would Highly recommend



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Awesome tails much nicer updated look on my service truck



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I bought a similar product on eBay and this one is much brighter, well worth the extra money!



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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!



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Lights worked perfectly and it was very easy to I stalled.



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You always have what I’m looking for. Good product, and got it quickly



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Great product. Easy to install. Definitely recommend this product.



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Great quality light. Replaced old incandescent lights with these LED lights on my boat trailer. They are much brighter.



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Had to wing it since the wires weren't all the same color, but it appears this was the exact part I needed!



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Wires not identified you have to go to website to confirm which wires are what. Other lights I have purchased were tagged



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Exactly what I was looking for & super fast response along with shipping



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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



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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!



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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.



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Great price, good quality. Worked great to rig up my RV receiver hitch toolbox with lights.



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Quick shipping and everything arrived in great condition. These are going to look great on the back of my 2005 Jeep TJ



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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!



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N/c



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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.



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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.


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Amanda K
Updated by:
Amanda K
Employee Justice A
Written by:
Justice A

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