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Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens
Optronics

Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens

Part Number: STL68RP5B
In Stock
$69.46
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10-1/8" x 3-1/16" Oval. 4-Function, waterproof light acts as brake, tail, turn, and backup light. Red lens set inside clear lens. Mounts to trailer surface with built-in flange - hardware not included. 5-Wire pigtail. 14 Diodes. Great Prices for the best trailer lights from Optronics. Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens part number STL68RP5B can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL68RP5B

Highlights

  • One Light, 4 Functions: Acts as stop, tail, turn, and backup light in a single unit.
  • Reliable In Any Weather: Sonically sealed, waterproof housing stays protected when submerged.
  • Fewer Replacements Needed: 14 LEDs run cooler, use less power, and last 50 times longer than bulbs.
  • Simple Surface Mount: Built-in flange lays flat against the trailer—no deep cutouts required.
  • Bright, Low-Draw Output: Stop/turn 0.35 A, tail 0.05 A, backup 0.3 A at 12.8 V for efficient lighting.
  • Road Legal: DOT compliant for safe and compliant trailer lighting.

Features to know about

All-in-One Visibility Upgrade: 4-Function LED Tail Light

This 10-1/8" x 3-1/16" oval Fusion LED tail light does it all—stop, tail, turn, and backup—in one clean package. With its built-in backup light, you don’t need to cut extra holes or mount a second fixture. The red lens sits inside a clear lens housing, combining red LEDs for your main signals and white LEDs for reverse. It’s DOT compliant and uses just 0.35 amps for stop/turn, 0.05 amps for tail, and 0.3 amps for backup at 12.8V, giving you bright performance with minimal power draw.

No More Water Worries: Sonically Sealed and Submersible

If your trailer faces rain, road spray, or even full submersion, this light is built for it. The polycarbonate lens and housing are sonically sealed into a single waterproof unit that protects the diodes and circuit board from moisture damage. Whether it’s dunked at the ramp or splashed on back roads, the sealed design keeps everything dry and reliable.

Durability That Handles the Miles: Solid SMT LED Construction

This light uses surface-mount technology (SMT) on its LED circuit board to withstand vibration and shock better than standard through-hole designs. The improved heat distribution helps extend diode life, meaning no fragile filaments to burn out and no bulbs to replace. The 14 LEDs are rated to last up to 50 times longer than incandescent lights while staying brighter and more efficient the whole way.

Simple Mounting and Wiring: Surface-Mount Design with 5-Wire Pigtail

Installation is straightforward thanks to the built-in flange that mounts flat on your trailer surface—no extra brackets required. The 5-wire pigtail makes connections clear: white wires for ground, brown for backup, red for brake, yellow for turn, and black for tail. Mounting holes are spaced 9-11/16" horizontally and 2-5/8" vertically on center, so setup stays quick and tidy without any guesswork.

Clean Finish Options: Add a Trim Ring if You Want It Polished

You can use this light as-is or pair it with the snap-on stainless steel trim ring (A68SSB, sold separately) for a finished look that matches other hardware. It’s an easy way to give the light a touch of style while keeping the same rugged build underneath.

Specs

Dimensions

  • Overall dimensions: 10-1/8" long x 3-1/16" tall x 1/2" deep
  • Tail light dimensions: 6-3/4" long x 2-1/8" tall
  • Backup light dimensions: 2-1/2" long x 2-1/8" tall

Technical diagram of Optronics Fusion LED Trailer Tail Light STL68RP5B showing oval shape with red and clear lens, mounting hole spacing, and dimensional measurements for installation reference.

Mounting

  • Mounting holes (horizontal): 9-11/16" apart on center
  • Mounting holes (vertical): 2-5/8" apart on center

Installation diagram showing surface-mount trailer light attached flat against trailer surface with flange and mounting holes for easy wiring and secure fit.

Electrical

  • Power draw at 12.8 volts: Stop/turn signal light: 0.35 amps
  • Tail light: 0.05 amps
  • Backup light: 0.3 amps
  • Diodes: 14

Warranty

  • LEDs: Lifetime warranty

STL68RP5B Optronics Fusion Combination LED Boat Trailer Taillight w/ Built-in Reverse Light - 14 Diodes - 5 WIre - Surface Mount - Red/Clear Lens





Video of Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens
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 Checking Out the Fusion LED Trailer Tail Light

Today we're going to be taking a look at the Optronics trailer tail light with backup light, part number STL68RB. Here in the back of our trailer you can see we're going to be upgrading our lights to a bigger light with the backup light. It features 14 LEDs in a red and clear lens, and because it's LEDs its going to be more efficient, there are not bulbs to replace, and it's going to last a long time. It's a 10 and 1/8 inch light that serves four functions. You have your brake lights, your turn signals, and your tail lights. You've also got reverse lights. It's a DOT-compliant light with a sonically sealed watertight housing.

It's a flange mount light, and you will need to provide your own hardware. It comes in a quantity of one, so if you're looking to replace both tail lights, you want to be sure to pick up a second one. Now, I'll go ahead and show you how to get this installed. First let's remove our old tail light. We'll want to be sure and set our hardware aside, because we're going to be reusing it. Now that the wire's revealed you can see we're already set up for our reverse light, we just weren't taking advantage of it.

Let's go ahead and snip our wires. That's always good to be careful not to let them fall back inside. Now our new light's wires come pre-stripped, so let's go ahead and strip our old wires. Now when stripping them, you only want to do about a quarter inch to reveal the wire. Perfect. Now let's go ahead and connect our wires.

To do so we're going to use some butt connectors. The ones we're using today are part number DW05714. We're just going to slide one on. We want to make sure you kind of clean the wire up a little bit. We'll just slide it on, that way there is no exposed wire, and we're going to crimp it down.

Now we'll just repeat that same process for the other three wires. There we go. Now let's grab our new Optronics LED light. In this instance we're able to connect color for color when connecting our light, but it's not a bad idea to check which wire performs which function when disconnecting your old light. So let's go ahead and do white with white, and so on and so forth. The white's going to be our ground, the red's going to be our tail light, the black's going to be our brake light and turn signal, and finally the brown is just going to be our reverse light. Great. Now that they're all connected, let's test it out. Let's first test our brake light. Then our turn signal. Then our tail lights. And now let's do our reverse. With everything functioning as it should, let's go ahead and run our old hardware back, and then we've got it. That's going to complete our look at the Optronics trailer tail light with backup light, part number STL68RB.

Customer Satisfaction Score:

Ratings & Reviews

4.8

534 reviews
Review sort icon
10-1/8" x 3-1/16" Oval. 4-Function, waterproof light acts as brake, tail, turn, and backup light. Red lens set inside clear lens. Mounts to trailer surface with built-in flange - hardware not included. 5-Wire pigtail. 14 Diodes.

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Great company to do business with



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Part very difficult to find and etrailer.com had in stock and fit perfectly



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Placed an online order, which was easy to navigate website. Order was delivered when they said it would be. Very satisfied !



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WORKING GREAT



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Michael profile picture

Michael

1/23/2024

Great !!!



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Excellent product, satisfied my needs



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Good service speedy delivery, however packaging quality was poor. lenses were scuffed during shipping.

Jenny N. profile picture

Jenny N.

4/11/2023

I would not want to receive lights that were scuffed either. Would you able to send pictures of the lights?



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GREAT PRODUCT FAST DELIVERY



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Exactly what was needed to replace the OEM non-led lights



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I was looking for this light and could not get it anywhere, i googled the part number and stumbled upon etrailer. Usually I don't really trust websites I don't know but I could not find the part anywhere so this was my only choice. So I ordered this part from Missouri when I'm from Québec, and package arrived no issues.



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Complete garbage. ordered a pair, neither work correctly. 1 tail is bright like brake light, other no tail period. test before installing.

Brooke M. profile picture
Etrailer Expert

Brooke M.

11/8/2022

Nine times out of ten when it comes to wiring, there is a simple solution. I am wondering if you have checked the ground connection - you will want to make sure it is a clean, direct metal to metal, secure connection. Also, do all the diodes light up on the dimmer light?



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Right Fit Excellent Quality, Arrived on time, Good Customer Service



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PART WAS ON TIME AND DELIVERED ON TIME STAFF WAS NICE TO DEAL WITH WILL BUY AGAIN WHEN NEEDED


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See what our Experts say about this Optronics Trailer Lights

  • Does DG52720PB Come in Chrome
    Hey Sam! Great questions! The fastest one to tackle would be your question about if part # DG52720PB comes in chrome, it does not. I looked at lights that were similar in size but came out empty handed on the chrome option. Now on to the part about looking for a light that is 10" x 4". I don't have anything that is exactly that but I have some that are close to it. Part # STL68RP5B is 10-1/8" x 3-1/16" - You can use stainless steel trim ring part # A68SSB Part # STL68RB is 10-1/8"...
    view full answer...
  • Comparing Fusion LED Trailer Tail Light STL68RP5B and STL68RB
    I would be happy to help! The Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens # STL68RP5B you were looking at is sold in a quantity of one, so if you are needing two tail lights you will need to order a quantity of two. The difference between the # STL68RP5B with 5 wires and the # STL68RB with four wires is that the 5 wire version has separate turn signal and brake lights, where the 4 wire version has these combined like a standard trailer...
    view full answer...


Info for this part was:

Employee Dustin K
Video Edited:
Dustin K
Employee Ronnie R
Updated by:
Ronnie R
Employee Noah M
Updated by:
Noah M
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

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