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ONE LED Trailer Tail Light - 6 Function - Submersible - Square - Red Lens - Passenger Side

ONE LED Trailer Tail Light - 6 Function - Submersible - Square - Red Lens - Passenger Side

Item # STL008RB
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Shipping Weight: 0.57 lbs
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Product Images

In Use/Installed

Customer Photos

5-1/16" x 4-9/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. ONE Series provides bright light using fewer diodes than other LEDs. Stud mount. Lowest Prices for the best trailer lights from Optronics. ONE LED Trailer Tail Light - 6 Function - Submersible - Square - Red Lens - Passenger Side part number STL008RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (298)
  • Q & A (8)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL008RB

  • Tail Lights
  • Square
  • LED Light
  • Red
  • Surface Mount
  • Optronics
  • Submersible Lights
  • Stop/Turn/Tail
  • Side Marker
  • Rear Reflector

5-1/16" x 4-9/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. ONE Series provides bright light using fewer diodes than other LEDs. Stud mount.


  • Square trailer tail light serves 6 functions
    • Stop light
    • Tail light
    • Turn signal light
    • Side marker light
    • Side reflex reflector
    • Rear reflex reflector
  • Sealed, waterproof construction is submersible
  • ONE Series provides bright light using fewer diodes than other LED lights
  • 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
  • Molded plastic housing
  • Red acrylic lenses
  • Mounts on surface of trailer with included studs
  • 3-Wire pigtail
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting


  • Configuration: passenger's side (right-hand side)
  • Dimensions: 5-1/16" long x 4-9/16" tall x 2-7/8" deep
  • Mounting holes: 2" apart on center
  • Power draw at 12.8 volts:
    • Stop light: 0.345 amps
    • Tail light: 0.069 amps
  • Warranty:
    • Lifetime on LEDs
    • 3-Year limited on housing, lens, and wiring

Optronics Light Dimensions

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 circuit board is sealed, which means that water will not damage the diodes or circuit board.

STL008RB Optronics ONE Series Combination LED Boat Trailer Taillight - Right Side - Red Lens

California residents: click here

Customer Reviews

ONE LED Trailer Tail Light - 6 Function - Submersible - Square - Red Lens - Passenger Side - STL008RB

Average Customer Rating:  4.8 out of 5 stars   (298 Customer Reviews)

5-1/16" x 4-9/16". Waterproof trailer light acts as brake, tail, turn, side marker, side reflex reflector, and rear reflex reflector. ONE Series provides bright light using fewer diodes than other LEDs. Stud mount.

- STL008RB

Excellent quality at an affordable price. Plus shipping was super quick. I have purchased numerous products from these guys. Customer service is second to none. I repeat, customer service is second to none. Thank you etrailer for setting the standard ALL online companies should follow 570993

- STL008RB

The tail lights that came on our boat trailer were the $1.95 incandescent variety. They quit working after the first season. Replaced them with these sealed LED units and they have worked fine ever since. 433515

- STL008RB

Another great product form etrailer works as stated and I love this company online easy to order, fast delivery and easy to install by DIY people. If further information is needed simply go online to view videos and it steps you right through the process this will allow me easy of comfort of no more bulbs bouncing around during travel and causing lights not work with LED they stay in place with this unit being sealed unit to prevent moisture & loose bulbs... 400964

Everything is working perfect and thank you for the follow up. I will be buying more when the time comes that I need something you carry and I recommend you to all of my friends and colleagues
kevina - 07/05/2018


- STL008RB

Haven't tried them on the road yet, but these seem well made. The edges of the lenses are flush and there isn't even any molding flash. I tested them and holy heck are they bright! Someone would have to be blind to miss the brake lights on these. The studs are the same spacing as the round incandescent tail light units that used to be pretty popular on utility trailers. The back of the light has a color code guide (a very nice touch) and notes that the mounting studs are the ground return. Not mentioned is that there's also a white wire (the one with the ring lug) in case you don't want to rely on the chassis ground. Personally I recommend having a continuous ground wire for your trailer lights; chassis grounds can be unreliable, especially in a corrosive environment. 827924

- STL008RB

It is a light and it works 827556

- STL008RB

Product and service brilliant. One the big things in service have been sorted, eg. good product, value for money (not cheapest) delivered in good condition in a predicted timeframe, it's the little things like an email with tracking url that has ALL the information you need... WITHOUT HAVE TO TYPE IN A TRACKING NUMBER , NAME, ZIP ETC. And same with review, click on a url in an email and enter your comments with pictures .....SIMPLE. so many other companies just make these types of things too complicated and onerous for the customer to provide feedback. Also each person in the process is named! Brilliant, personal and just nice. I wish you guys were responsible for all of my transactions for all the things I buy online. Thank you to all of you at retailer fantastic job. 825690

- STL008RB

They work just like they were suppose to and were easy to install. 827688

- STL008RB

The product was as described and it works great. 821402

- STL008RB

Knowledgeable, friendly representative, found exactly what I was looking for. Thank you. 799648

- STL008RB

Was wanting to upgrade to led lights good looking light only time will tell how long it will last I'm happy, shipping was good. 791989

- STL008RB

Service was great, delivery was quick, product was as advertised. I will order again as the need arises. 789565

- STL008RB

The lights are what i expected and sure they will be a great replacement. Thank you for your service.Take care and be safe. 785830

- STL008RB

Very traditional look. 760699

- STL008RB

Excellent service and support. Very productive and helpful company. I highly recommend etrailer.com for all of your trailer needs. 735743

- STL008RB

Great lights and an exact fit for my trailer. Was very easy to find the correct size and install thanks to the tons of info on the etrailer site. Now what do I do with all these old incandescent bulbs? 719085

- STL008RB

Great service and quick delivery after easy online ordering. Between our 5th wheel and a small utility trailer, I'm always in the market for something trailer related. I will definitely do business with etrailer again. Thanks! 715132

- STL008RB

lights worked great price was very good 703419

- STL008RB

Great Product and fast shipping 699535

- STL008RB

After purchasing several products from etrailer I decided to replace lights and wiring on two boats. Easy installation, great instruction videos and great price!! 698123

- STL008RB

I reviewed both products in previous re view. 695685

- STL008RB

Exactly the part I was looking for! Very fast shipment! Thank you! 692587

- STL008RB


- STL008RB

The lighting is great and easy to insta ll! 679566

- STL008RB

I bought this for my parents. I know they rec'd, but given some vacation and visitors they have not had an oppty to install yet. All appears in good order and was rec'd timely. Thank you. 674694

- STL008RB

Good product! Happy with results and us e. 666672

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Ask the Experts about this Optronics Trailer Lights

  • Why etrailer.com?

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    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

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  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Installed by:
Andrew S
Video Edited:
Jacob T
Updated by:
Amy B
Updated by:
Sarah W
Updated by:
Brian T
Video by:
Chris R

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