This head light uses the ebike power and does not require battery.
For newer controller version it can be connected to the (yellow-black) wires from controller.
by holding ebike keypad arrow-up for 2 sec the head light turns on and off.
For newer controller version it can be connected to the (yellow-black) wires from controller.
by holding ebike keypad arrow-up for 2 sec the head light turns on and off.
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