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Fusion LED Combination Tail Light - Submersible - 4 Function - 12 Diodes - Red and Clear Lens
Optronics

Fusion LED Combination Tail Light - Submersible - 4 Function - 12 Diodes - Red and Clear Lens

Part Number: STL201XRFHXB
In Stock
$47.78
Trailer Lights
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5-1/2" Round. Waterproof trailer light serves 4 functions: brake, tail, turn, and back-up light. Built-in reflex reflector. Surface mount - hardware not included. 3-Wire design. Great Prices for the best trailer lights from Optronics. Fusion LED Combination Tail Light - Submersible - 4 Function - 12 Diodes - Red and Clear Lens part number STL201XRFHXB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL201XRFHXB

Highlights

  • One Light, 4 Functions: Provides stop, turn, tail, and backup lights in one round 5-1/2" unit.
  • Reliable In Any Weather: Sonically sealed housing and lens keep water out for submersible use.
  • No Extra Reflectors Needed: Built-in reflex reflector adds visibility without extra parts.
  • Fewer Replacements Needed: 12-diode LED design lasts 50× longer and uses less power.
  • Simple Surface Mount: Installs flat with built-in flange; no trailer cutout required.
  • Road Legal: FMVSS compliant for trailers over 80" wide so you stay visible and compliant.

Features to know about

Brighter, Longer-Lasting, and Efficient: LED Combination Tail Light

If you’re ready to move on from dim, short-lived bulbs, this 5-1/2" round Fusion LED tail light makes a big difference. It uses 12 LEDs that last up to 50 times longer than standard incandescent lights while drawing less power—just 0.375 amps for stop and turn, 0.145 amps for tail, and 0.3 amps for backup at 12.8V. The result is a clean, bright output that improves visibility day or night without loading down your electrical system. You get steady performance with no bulbs to replace and no filaments to break.

Dealing with Water Exposure: Sonically Sealed, Waterproof Construction

Moisture can ruin lights fast, but this one is built to stay dry inside. The lens and housing are sonically sealed into a single waterproof unit that’s fully submersible. Even when the trailer gets dunked or road spray kicks up, water won’t reach the diodes or circuit board. That sealed build means no corrosion creeping in and no fogging behind the lens—just dependable light every time you flip the switch.

Replacing OEM Lights Without Hassle: Surface-Mount Design with Built-In Flange

Switching out old lights shouldn’t mean cutting holes or fighting hardware. This light mounts flat against your trailer using its integrated flange, so you don’t need to recess it into the body. The wiring is straightforward too: a 3-wire design with 8" leads for tail, stop/turn, and backup functions plus ground. With the built-in reflex reflector, there’s no need for a separate reflector piece—simple install, clean fit, and fewer parts to track down.

Surface-mounted round LED trailer light installed flat against trailer surface with flange attachment.

Improving Rear Visibility and Safety: Four-Function LED Setup

This single unit handles brake, tail, turn, and backup duties all in one compact package. The red and clear lenses cover white LEDs so you get bright signals when you stop or turn, plus clear illumination when reversing in dark spots. It’s FMVSS compliant for trailers over 80" wide, so it meets required lighting standards while keeping your setup neat and easy to maintain.

Built for Durability: Polycarbonate Housing and Lens

Rugged use demands components that hold up. The polycarbonate lens and housing resist impacts and won’t crack under vibration or weather changes. Whether it’s road grime or bumps along the way, this light is made to keep shining without fading or clouding over time—so you can count on it every mile you tow.

Specs

Dimensions

  • Overall dimensions: 5-1/2" diameter x 13/16" deep

Diagram of Optronics Fusion LED Combination Tail Light showing round red and clear lens design for brake, turn, tail, and backup functions.


Electrical

  • Power draw at 12.8V: Stop/turn: 0.375 amps
  • Power draw at 12.8V: Tail: 0.145 amps
  • Power draw at 12.8V: Back-up: 0.3 amps
  • Compatible voltage: 12V DC systems

Lighting

  • Diodes: 12
  • Functions: Stop, turn, tail, and back-up
  • Lens: Clear and red lens over white LEDs
  • Built-in reflex reflector: Yes
  • LED type: White LEDs

Construction

  • Housing: Durable polycarbonate lens and housing
  • Waterproof: Sonically sealed, waterproof housing and lens unit is submersible
  • Mount type: Surface mount with built-in flange - hardware not included
  • Wiring: 3-Wire design with 8" leads hardwires to trailer
  • Compliance: FMVSS compliant for trailers over 80" wide

Warranty

  • Lifetime warranty on LEDs

STL201XRFHXB Optronics Fusion LED Combination Tail Light w/ Reflector for Trailers over 80" Wide - Submersible - 5 Function - 12 Diodes - Red and Clear Lens





Customer Satisfaction Score:

Ratings & Reviews

4.8

193 reviews
Review sort icon
5-1/2" Round. Waterproof trailer light serves 4 functions: brake, tail, turn, and back-up light. Built-in reflex reflector. Surface mount - hardware not included. 3-Wire design.

by:

Just what I needed to add an additional safety/signaling light in a car towed on a car dolly.

The lights show very clearly through the tailgate window.



by:

Works great, was easy to wire up once figuring out the schematic on the truck side of things. Lights are nice and bright, compact as well. Had to order resistors to prevent my truck from doing the classic GM hyperflash. All good since install!



by:

Excellent lights. Exactly what I was looking for. Excellent quality. Great price. Shipped fast. No hassles. Great communication. Will be back for sure.



by:

These large lights sure help to see when we’re braking or turning. We mounted them high on each side of our 3021 fifth wheel and they match grand design factory lights exactly! Exepy that they’re longer which is what we wanted. We’ve had them a year now and they’re still holding up well



by:

Fantastic product. Replacing taillights on my motorhome and upgrading with these LED lights. Will provide a picture once project is completed.



by:

Install was straight forward and uncomplicated.  They are very bright and enhance the tiny lights that are provided with the RV.  Looks like they are impervious to water as well!



by:

Great product and support. These lights were installed on a
2017 Ford Transit 250 with medium roof



by:

Great Bright additional lighting for up high on my RV. I did have to purchase a three-way to two way adapter. Did not realize that when I purchased it. it would be nice if they had a five wire system on some of the lights.



by:

Easy to install. Our turn signals are no longer hidden by our mountain-bike tires. I think it is safe to say that etrailer has saved our life.



by:

Wanted to add extra lights for people following me. These fit the bill. I wanted to install vertical but felt the installed ladder would hide the light. The horizontal install works great



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Just as advertised



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Great service!



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As described and delivered on time.



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Customer really likes the product



by:

Light was easily installed!! A year later it still looks good and is working well!!



by:

I needed these lights next day and you delivered! The lights work grat and match the ones I have.



by:

Have not installed yet. Product seems nice and not cheap well made
Will update after installed. It’s raining in Oregon. Lol



by:

you were the only place that had the light I needed. ordering was easy, shipping and delivery were fast



by:

Delivery was fast. Light functions as i ntended.



by:

Product pricy, VG quality.



by:

Although I sold the camper this past December the benefit of this light is it was a tail, turn, stop and reverse light in one fixture requiring one small hole for the wires in addition to the 3 small attachment holes.



by:

Seems to be well made. Bright running and brake lights. Also has white reverse. More expensive than I wanted to pay, but I wanted them to match the original equipment on my Winnie.

I added these lights on the back of Minnie-Winnie two feet above the originals (now I have 4 taillights). I thought the originals were too low for my taste and wanted to make sure people in traffic could see my taillights above the spare tire and above the hoods (and through the windows) of cars in traffic. It gives me peace of mind when braking in heavy traffic or driving on dark roads.


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See what our Experts say about this Optronics Trailer Lights

  • Recommendation for Side Mounted Trailer Taillight
    What do you mean by side mount? Like one that mounts side of trailer frame but still points back? Do you possibly have pictures of what you are looking for?
    view full answer...
  • Looking For Replacement LED Taillights For 2012 Cougar 5th Wheel
    Hey Marcel, thanks for reaching out. We do have some lights similar to the Bargman 110622a, but we don't have a direct replacement. Based on the specs I found online, that Bargman light is a 4-1/8" diameter surface mounted taillight. We have a few lights that are similar to this, although what we have will be slightly larger. Take a look at the following: - Optronics LED Trailer Light w/ Reflex Reflector - Brake, Tail, Turn - Submersible - Round - Red # STL43RBX (5-3/4" diameter) - Peterson...
    view full answer...
  • Looking For A Replacement Light For My 2019 Rockwood Mini Lite With Backup Function
    Hey Steve, The exact light that you mentioned we do not have with the backup light. I looked at some other lights we have with that function for you and the closest one that we have is going to be the Optronics # STL201XRFHXB. This is a smaller light being 5-1/2" in diameter compared to the 5-15/16" that you were looking at. It offers the 4 functions that you need, stop, turn, tail light and a back up light in the center. It would wire in the same way you may just have to add some sealant...
    view full answer...
  • Recommendation for Round 5-1/2 Inch Tail Light Replacement
    The best option to replace your round 5-1/2 inch tail lights are surface-mounted LEDs because they are going to be the brightest, last the longest, and be the easiest lights to mount. There are two options that are similar except for the lenses, though both give you stop, turn, tail and back-up functions. The LED Trailer Tail Light # 328-003-6019R only has a red lens, but uses white LEDs for the back-up while the Fusion LED Combination Tail Light # STL201XRFHXB also has white LEDs but...
    view full answer...
  • Best Method to Wire Replacement Tail Light On Trailer
    The best way to wire in a new tail light on your 2020 Winnebago Micro Minnie TT is to cut all the old splices out and connect the new tail light directly to the factory wires. The less connection and junction points you have the better; that way there is less chance for a failure point or corrosion building up. The most full proof way of making any electrical connection is to solder and heat shrink the connection. Performance Tool Soldering Accessory Kit # PTW2080 has everything to solder...
    view full answer...
  • Recommended Tail Light For a 1965 Truck With Holes In Rear Bumper For Tail Lights
    While we will not have any tail lights or reverse lights that will fit the holes in the bumper or your 1965 truck, I would recommend using the Fusion LED Combination Tail Light # STL201XRFHXB to cover both holes. This light is flush mount so it will fit over the holes in the bumper, which will also allow the wiring to pass through the homes. The light is 4 function so each light will act as a running light, brake light, turn signal and reverse light.
    view full answer...
  • Surface Mounted Round LED Trailer Light With Amber Turn Signal
    There is a round LED trailer taillight similar to the Fusion LED # STL201XRFHXB that is amber and can be used with a turn signal, with the closest being the GloLight LED Trailer Turn Signal and Parking Light # STL190AB It does not have a reverse light (no round amber lights do) but is a turn signal light. It is 7 inches in diameter and a 3-wire pigtail. In regards to painting the other light, that's something I can't recommend as it may not meet legal requirements.
    view full answer...

Do you have a question about this Trailer Light?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Hannah L
Updated by:
Hannah L

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