How To Correctly Wire The Optronics Thinline LED STL64RB To A Trailer

Updated 09/22/2025 | Published 08/25/2023

Products Featured in This Question

Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Red Lens

(1625)

$19.52

Question:

For turn signals, I presume you hook the Red Turn signal lead to both the Green and Yellow trailer Harness wires and the Black Lead to one of the Brown Trailer Harness wires? I am rewiring an old Flatbed Trailer80 with a standard submersible LED Light Package.

asked by: Scott R

Expert Reply:

Yes you are correct in your assumption. On the Optronics Thinline LED # STL64RB, the Red wire is for turn signal, so this will go either the green or yellow wire on your trailer. The black wire is tail lights so this would go to the brown wire on your trailer. The white wire is of course your ground.

expert reply by: Jesse M

Charles

9/22/2025

How does this work with one wire going to.your turn signal when there are one wire for left and one for right ?

Jesse M.

9/22/2025

@Charles The turn signal wire can be connected to the right turn or left turn wire. It just depends how you are installing it. You would not need to connect it to both wires