kt controller

All, I obtained a eBike which the previous owner tried to repair by replacing the controller in a very messy way. (assuming all wire colours have the same function in both controllers was his biggest error) Now I am making good progress. Identified all wires to function on the frame and...

So I'm modifying my electric scooter and it's got a tail light that lights up when I hit the brake on my standard controller, Id like to keep that function using one of the KT 9 fet controllers from PSWPower, any chance this could be achieved rather simply? The light runs off battery voltage if...