Could the Optronics Trailer Light # STL69RB Be Used as a Third Brake Light on a Trailer
Published 12/30/2014
Products Featured in This Question
Question:
I have a 2003 4Runner that has a brake controllerinch wire included in the 7 blade round connector that I have continued through in my trailer wiring small 5x9foot utility trailer. Can I use that wire to power this light as a 3rd brake light that only illuminates upon braking? In other words, shouldnt the brake controller wire activate or provide power only when braking such that it would be useful for this purpose?
asked by: Todd F
Expert Reply:
The brake output circuit of your vehicle/trailer wiring wouldn't be an ideal circuit to power the third brake light of a trailer unless you wanted to modify the circuit on your tow vehicle. You would have to run a brake light circuit straight to the brake output circuit so that the pin sees 12 volts when the brake are applied. Trying to run the output from a brake controller to a third brake light wouldn't be a feasible option. A brake controller won't send a full 12 volts to the output circuit of the 7-way immediately when the brakes are applied so it wouldn't work.
From there you would need to run a wire from the brake output circuit of the 7-way on the trailer to the black wire of the # STL69RB.
An easier and more recommended method would be to use a taillight converter to isolate the stoplight circuit like part # C56196. See the chart I attached to see how it wires in.
Product Page this Question was Asked From
Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 11 Diodes - Red Lens
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- Oval
- Surface Mount
- Submersible Lights
- LED Light
- 15L x 1-1/2W Inch
- Red
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: trailer lights
- Search Results: oval light bracket
- Shop: Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 11 Diodes - Red Lens
- Video: Review of Optronics Trailer Lights - Amber LED Smoke Lens Mid Ship Turn Intermediate - OPT52KB
- Shop: Optronics LED Trailer Light - Parking and Turn Signal - Submersible - Surface Mount - Oval - Amber
- Search Results: wire
- Search Results: 4 wire trailer wire
- Shop: Steel Mounting Bracket for 6-1/2" Long Oval Trailer Lights - Black Powder Coat
- Shop: Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens
- Q&A: Is the Optronics LED Trailer Tail Light item # STL78RB DOT Approved?
- Shop: Vehicle Tow Bar Wiring
- Shop: Trailer Wiring
- Search Results: stl78
- Q&A: Installation Of 3 Wire LED Marker Lights
- Search Results: 2 wire
- Shop: Jeep-Style LED Combination Trailer Tail Light - 4 Function - 52 Diodes - Passenger Side
- Shop: Mounting Bracket and Installation Hardware - Pollak 7-Pole, RV-Style Trailer Connector - Vehicle End
- Shop: TowSmart Trailer Connector - 2-Wire Flat Set - 12" Long
- Video: Review of Optronics Trailer Lights - LED Tail Lights - OPT94KB
- Video: Review of Optronics Trailer Lights - Clearance Lights - OPT44NR
- Video: Hot-Line LED Trailer Turn Signal Light Bar Spec Review
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
on Trailer Lights
