I have a Roxim Z3EK bicycle headlight. This light is supposed to have a low and high beam function, but I can only get the low beam to work. So far, I have tried:
- grounding the green wire
- sending 12V+ to green
- sending 12V- to green
- bridging the green and black wires
- bridging the green and white wires
I emailed the manufacturer asking for a wiring diagram, but no response.
I appreciate any guidance y’all might have. Thanks!


My only guidance is: Do not assume the wire colours have any significance. Work your way through all the combinations, regardless if they are “logical” or not.