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LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Red Lens

LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Red Lens

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STL13RFHXB - Stop/Turn/Tail Optronics Trailer Lights
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5-5/8" Round. Waterproof LED trailer light acts as a stop, tail, and turn signal. Built-in reflex reflector. Durable polycarbonate housing and lens. Surface mount with built-in flange - hardware not included. 3-Wire design. Lowest Prices for the best trailer lights from Optronics. LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Red Lens part number STL13RFHXB can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (39)
  • Q & A (0)
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Optronics Trailer Lights - STL13RFHXB

  • Tail Lights
  • Round
  • LED Light
  • Red
  • 5-1/2 Inch Diameter
  • Surface Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

5-5/8" Round. Waterproof LED trailer light acts as a stop, tail, and turn signal. Built-in reflex reflector. Durable polycarbonate housing and lens. Surface mount with built-in flange - hardware not included. 3-Wire design.


  • Round trailer tail light serves 3 functions when properly mounted
    • Stop light
    • Tail light
    • Turn signal light
  • Built-in reflex reflector removes the need for a separate reflector
  • Sonically sealed, waterproof housing and lens unit is submersible
  • 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
  • Durable polycarbonate lens and housing
  • Red lens over white LEDs
  • Surface mount with built-in flange - hardware not included
  • 3-Wire design
  • FMVSS compliant for trailers under 80" wide


  • Overall dimensions: 5-5/8" diameter x 3/4" thick
    • Light face: 4" diameter
  • Diodes: 7
  • Wire length: 6"
  • Power draw at 12.8V:
    • Stop/turn: 0.234 amps
    • Tail: 0.033 amps
  • Lifetime warranty on LEDs

Optronics LED 4 Inch Stop, Turn, Tail, Light with Reflex Mounting Flange Diagram

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 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.

STL13RFHXB Optronics LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Surface Mount - Red Lens

California residents: click here

Customer Reviews

LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Red Lens - STL13RFHXB

Average Customer Rating:  4.9 out of 5 stars   (39 Customer Reviews)

5-5/8" Round. Waterproof LED trailer light acts as a stop, tail, and turn signal. Built-in reflex reflector. Durable polycarbonate housing and lens. Surface mount with built-in flange - hardware not included. 3-Wire design.


Replaced problematic lights on my vintage trailer. Eliminated bulbs and problems associated with them and replaced with LED. Easy install and quality product

A year later and things are still working great, I should have done this sooner!!
Sf - 06/02/2020


They are flat and sealed and bright, also reflective.


Lights were exactly as described. Easy install and bright!!!


After one year one of the lights has quit working. Quality not what I thought it should be.

This is covered under warranty. Customer Service will reach out to you.
-- Etrailer Expert Sierra K - 12/01/2021


Works great.


Nice and bright no problems at all thank you


I ordered a set of these as replacements for older lights. Perfect fit! Bright, and work great!


They’ve changed the look of the light slightly, but it was a good replacement for my R-pod trailer. I just changed both lights


Great fit. Better quality and appearance than original.


Exactly what I needed and fast delivery .


I am very satisfied with etrailer and the ordering and shipping of the products, I had questions on the description of the round tail lights so I called etrailer and it was cleared up. The lights are perfect for my application. They are mounted on a small camping trailer that is pulled behind a motorcycle and space is limited so these being only 3/4" thick is great and because they are LED it makes it easier on the motorcycle electrical system. The outside diameter is 5 5/8 inch as on the video review along with all the rest of description is correct. A very nice light indeed.


This has been on our RV for a year now and is working very well.


Great fit, easy install and a great looking pair of tail lights for my old 65 Terry trailer.
Exactly what I was hoping for.


Great improvement over the stock LED lights. Very pleased!


Love these easy to install tail lights!


Tout est parfait, merci


The lights we ordered came in a very short time and we are very pleased with the product. I would highly recommend this company for replacement parts for your trailer.


Safety update for my antique Shasta. Bright and well made' my only problem was my own failure to order the stainless steel rings to really finish off the install and add some more strength to the light structure; don't be cheap order the rings.


Everything worked out perfectly! Quality tail light that hasn't had a problem since we installed it.


Great product that was shipped promptly. They work great on my R-pod 171.



Great Service, Great Product Knowledge, and received the order 3 days earlier than expected


Well pleased.


Product delivered and was exactly what I ordered. Thanks.

Jim J.


Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Availability of LED Replacement for Round Glo-Brite 9541 Light Assembly
    The closest option we have available to your existing round Glo-Brite assemblies (which are no longer made) is the Optronics LED Trailer Tail Light # STL13RFHXB. This assembly has an overall diameter of 5-5/8" and the light face itself measures 4" in diameter. This unit has a standard 3-wire pigtail (not the 3-prong plug) so you would need to hardwire it to your trailer's wiring at the back. The 3 bolt holes are spaced apart by exactly 4-1/4", so you may need to drill some additional...
    view full answer...
  • Wiring Trailer Taillights, What Wire Connects to What?
    On the LED Trailer Tail Light w/ Reflector # STL13RFHXB the black wire is for the tail/running lights. The red wire is the brake and turn signal lights and the white is the ground. I have attached below a help article that covers the wiring on trailers as well in case you have any other questions beyond that.
    view full answer...
  • Troubleshooting New Brake Lights That Both Lights Flash On One Side
    It looks like you purchased and installed the LED Trailer Tail Light w/ Reflector - Stop, Tail, Turn - Submersible - 7 Diodes - Round - Red Lens # STL13RFHXB on a trailer. Typically when this happens it indicates a bad ground somewhere on the trailer, so you'll want to check the ground connection on the right side light, as well as any ground wire for the entire trailer. This would be a great starting point for your troubleshooting, but if all of your ground wires are firmly connected...
    view full answer...
  • Replacement Trailer Brake Turn Light for 1969 Apache Mesa Trailer
    While I was not able to find anything that cross referenced with the SAE number you mentioned the Optronics light part # STL13RFHXB is very close to what you mentioned in terms of size and function so it would work great. This is a very common style of taillight found on older trailers like what you have as well.
    view full answer...
  • Availability of Round Trailer Taillights
    You could use round trailer taillights like the part # STL13RFHXB to accomplish what you are looking for. These are surface mount and would attach easily to outside of your camper.
    view full answer...
  • Is LED Trailer Taillight # STL13RFHXB Sold in Pairs or Individually
    The LED Trailer Tail Light w/ Reflector # STL13RFHXB that you referenced is sold individually. The reason there is a picture that shows two assemblies is because it shows a picture of it lit up and a picture of it not lit up to show difference basically. If you needed two of these you'd need to order a quantity of two.
    view full answer...
  • Can a 4 Inch Round Trailer Tail Light Be Riveted On
    The LED Trailer Tail Light w/ Reflector part # STL13RFHXB could hold up to a rivet gun or it could not, there are really too many variables to advise on this but if you were to use the Stainless Steel Trim Ring part # A5TRSSB over the mounting flange I believe that would then allow you to use a rivet gun without breaking the plastic. There is also the option of the Peterson Trailer Tail Light w/ Stainless Steel Housing part # 429800 but this has an incandescent bulb, not an LED.
    view full answer...
  • Replacement 5th Wheel LED Tail Light for a Round Red Light
    Thank you so much for your photos. We don't have an exact replacement light for you, but we have something very close. It's the Optronics LED Trailer Tail Light, part # STL13RFHXB. This LED light measures 5-5/8" in diameter (almost exactly what your current one measures) and has the three mounting holes. It features the 7 diodes that your current one seems to have and the same three functions. Most importantly, it's round and fully red. This is a flush-mount design, so there is a difference...
    view full answer...
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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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