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ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens

ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens

Item # STL64RCB
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Our Price: $23.58
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Shipping Weight: 0.61 lbs
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STL64RCB - Stop/Turn/Tail Optronics Trailer Lights
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20-1/2" x 1-1/16" x 3/4". Waterproof trailer light serves 3 functions on trailers over 80" wide: brake, tail, and turn. Low-profile ThinLine light fits in tight spaces. Surface mount - hardware not included. 3-Wire design. Lowest Prices for the best trailer lights from Optronics. ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens part number STL64RCB can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL64RCB

  • Tail Lights
  • Strip Light
  • LED Light
  • Red
  • 20-1/2L x 1W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

20-1/2" x 1-1/16" x 3/4". Waterproof trailer light serves 3 functions on trailers over 80" wide: brake, tail, and turn. Low-profile ThinLine light fits in tight spaces. Surface mount - hardware not included. 3-Wire design.


  • Low-profile trailer tail light serves 3 functions on trailers over 80" wide
    • Stop light
    • Tail light
    • Turn signal light
  • Thinline Series has a low profile so that light can fit in tight spaces
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Durable surface-mount technology (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Polycarbonate lens and housing
  • Clear lens with red LEDs
  • Mounts on surface of trailer - hardware not included
  • 3-Wire design hardwires to trailer
  • DOT compliant
    • Meets FMVSS requirements for trailers over 80" wide


  • Dimensions: 20-1/2" long x 1-1/16" tall x 3/4" deep
  • Distance between mounting holes (center on center): 19-5/8"
  • Diodes: 15
  • Power draw at 12.8V:
    • Stop light: 0.2 amps
    • Tail light: 0.01 amps
  • Lifetime warranty on LEDs

Optronics STL64 Series ThinLine LED Tail Light Dimensions

Sonically Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.

Surface-Mount Light

Surface-mount lights install flat against the surface of the trailer, so a hole does not need to be cut into the trailer for the light. This type of light is installed using a flange or bracket that has mounting holes. And mounting hardware is used to secure the light to the trailer.

Combination Lights for Trailers Over 80" Wide

Flatbed trailer over 80" wide with combination tail lights

If a trailer is 80" or wider at its widest point, then it requires rear clearance lights in addition to basic trailer lights. These clearance lights indicate the width of the trailer when it is viewed from the back.

To meet these requirements on a flatbed utility trailer where the bed extends past the wheels, you can install combination trailer lights that include the rear clearance function. For proper mounting, the lights must be installed at the widest points on the rear of the trailer - one on each corner.

STL64RCB Optronics Thin Line Combination LED Boat Trailer Tail Light for Trailers Over 80" Wide - Waterproof - 15 Diodes - Clear Lens

California residents: click here

Video of ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens

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

Video Transcript for Optronics Trailer Lights - Tail Lights - STL64RCB Review

Speaker 1: Today we're taking a look at the Optronics Thinline LED trailer taillight. This low profile trailer taillight serves three functions on trailers over 80 inches wide. It provides your stop light, your taillight, and your turn signal light. Now this is the thinline series from Optronics so it has a low profile design so that way the light can easily fit into tighter spaces. It's completely sealed so it features a sonicly 00:00:28 sealed design which gives it a waterproof housing and lens unit that is submersible.We're looking at durable surface mount technology when it comes to the construction of the LEDs circuit board. It's designed to better withstand shock and vibration and allow for improved heat distribution.

This is a full LED system. LEDs make great replacements for incandescent lights. They last longer. They burn brighter. They're more efficient.

With LEDs, you don't have to worry about replacing bulbs and you don't have to worry about brittle filaments. It has a polycarbonate lens and housing. Mounts directly on the surface of your trailer so it has two predrilled mount holes, one on each end, mounting hardware not included.It's a three wire design. White wire's the ground wire, black wire is the main power wire for the taillights, and then red wire's the power wire the stop and turn signals. It's Department of Transportation compliant so it meets FMV 00:01:19 requirements for trailers over 80 inches wide.Few measurements to go over with you real quick.

Then we'll hook it up to power so you can see what it looks like with power running to it and with our overhead lights off. Overall length measurement, very edge to very edge, is 20 1/2 inches long. It measures one and one-sixteenth inches tall by three-quarters of an inch deep. Mount holes are separated on center by 19 and 5/8 inches.We're going to go ahead and hook it up to power that way we can see what it looks like. We'll also turn off our overhead lights, gives us a little bit better look at it.

So here you can see it sends out a really nice clear consistent signal. This one has the red LEDs with a clear lens. This is the taillight or running light function of the unit when we apply our brakes. You can see how that signal output increases for a brighter signal, does the exact same thing when we activate our turn signals. Now this unit has 15 diodes or LEDs so the multi-diode design really helps to optimize the overall light output. Power draw at 12.8 volts. For the stoplight, it's 0.2 amps and for the taillight is 0.01 amps. Optronics also puts a lifetime warranty on the LEDs.That's going to do it for today's look at the Optronics Thinline LED trailer taillight.

Customer Reviews

ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens - STL64RCB

Average Customer Rating:  4.8 out of 5 stars   (702 Customer Reviews)

20-1/2" x 1-1/16" x 3/4". Waterproof trailer light serves 3 functions on trailers over 80" wide: brake, tail, and turn. Low-profile ThinLine light fits in tight spaces. Surface mount - hardware not included. 3-Wire design.


They work and look great on the back of my truck. DOT approved and work off my motorhome lights when flat towed behind it. I made the brackets for them and attached them recessed under each side bottom of the rear bumper.


As always great service from etrailer. The lights are bright and easy to install. Put them up high on the back of my trailer so when I’m transporting bikes my tail lights are readily visible.


No instructions just parts tossed in a poorly packaged box with heavy items. These parts were bent on arrival and out of their plaswtic packaging.


It works , thanks . If I ever need a part again for my enclosed trailer I know exactly where I’m ordering from


Got the lights today and already installed them, thanks for the great service!


Great quality, haven’t instAlled yet


My enclosed trailer came with small oblong led lights, they were okay but I felt that I needed more visibility.
I installed these about one year ago. They more than doubled the visibility of my trailer during the day. I highly recommend these lights.

One year later and they are as Bright and trouble free as the day I installed them
James E - 06/14/2021


Great job thanks


The Lights look good on my trailer & were easy to install. They are very visible when lit up. I use my trailer alot at night on the highway. I really appreciate the fast shipping. As always I'm pleased with the product quality & service I received from etraile.


Great look and bright lights. I especially like that the design of the bar provided a great seal between the light bar and the trailer body when the screws were thightened.

I am still pleased with the lights. I definitely recommend these lights
Jim - 07/22/2021


It fit exactly. Perfect fit


Easy install and very bright lights work well


was as reported .worked good for pulling machinery that isnt manufactured with lights


It’s still working that’s what it is supposed to do


Arrived in a timely manner , product is well made and works great ! Would recommend to anyone!


These were an exact match to the lights on my trailer.


Ordered two - Five stars even though one had a problem. Called customer service and explained the problem. A replacement is on the way. This is why I do business with Great customer care, service and quality products. Out of the many orders I have placed this one was the only one with an issue. I'm going to order 4 more next week to install on my headache rack. Great purchase!


Love the light strip!!!!!


Easy to install and works great!


Very good quality, fast delivery and well protected


Arrived sooner than expected.


Is a very good light. The LEDs are bright.


Prompt service and excellent quality and great prices. Thank you


Works fine


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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

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