Is There An LED Version Of The Optronics Trailer Tail Light ST21RS?
Updated 09/12/2025 | Published 08/27/2025 >
Products Featured in This Question
Question:
Is this light available in a LED model?
asked by: Keith W
Expert Reply:
Hi Keith!
I have a way to make the Optronics Trailer Tail Light - Stop, Turn, Tail, License - Round - Red Lens - Driver Side # ST21RS into an LED light, but Optronics does not offer this one as an LED.
If you replace the incandescent double contact 1157 bulb with something like the ARC 1157 LED Bulbs - 360 Degree - Double Contact Bayonet - 600 Lumens - White - Qty 2 # ARC93FR, it would be a much brighter light. This also includes two bulbs, so you could also do the passenger side ( # ST20RS).
Out of curiosity, what do you want to install this on?
Product Page this Question was Asked From
Optronics Trailer Tail Light - Stop, Turn, Tail, License - Round - Red Lens - Driver Side
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- License Plate
- Round
- Surface Mount
- Non-Submersible Lights
- Incandescent Light
- 3-7/8 Inch Diameter
- Red
- Optronics
more information >
Continue Researching
- Search Results: trailer wiring
- Search Results: trailer lights
- Search Results: wire connectors
- Q&A: Passenger Side Version of Optronics Clearance Light # ST21RS
- Q&A: Availability of the Optronics Driver Side Round Trailer Light # ST21RS
- Shop: Kenda Karrier KR53 ST205/75R15 Radial Trailer Tire with 15" White Mod Wheel - 5 on 4-1/2
- Shop: Optronics LED Trailer Light w/ Weathertight Plug - Brake, Tail, Turn - Submersible - Round - Red
- Shop: Peterson Trailer Tail Light - 4 Function - Incandescent - Round - Red Lens - Driver Side
- Shop: Self-Stripping Connector with Waterproof Sealant - 14-18 Gauge - White and Blue - Qty 1
- Shop: Optronics Trailer Tail Light - Stop, Turn, Tail - Round - Red Lens - Passenger Side
- Shop: ONE LED Trailer Light w/ Weathertight Plug - Brake, Tail, Turn - Submersible - Round - Red
- Shop: Optronics LED Transit Tail Light - Stop, Tail, Turn - Submersible - 31 Diodes - Red Lens
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Trailer Wiring Diagrams
- Search Results: trailer tires and wheels
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Comparing Kenda KR03, KR35, And KR53 Tires
- Shop: Trailer Wiring
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Shop: Suspension Enhancement
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer jack
- Article: How to Measure for Trailer Hitch Drop
- Shop: Brake Controller
- Q&A: Which is Better for Highway Use 4.80-12 or 5.30-12 Trailer TIres
- Video: Review of etrailer Trailer Hubs and Drums - Hub with Drum - AKHD-545-35-EZ-K
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles


Lazer S.
9/12/2025
Hi Keith, Did you have a chance to try the LED bulb replacement for your trailer tail light? I'm curious to know how it worked out for you, as it could help others looking to upgrade their lights.