I installed the headlight SUPERNOVA M 99 Pro on my bike. Near beam 16 W, main beam 32 W. 24 volts. I had to connect to the battery directly. Installed DC \ DC converter AM50E-4824S-NZ (input 36-72 volts, output 24 volts 50 watts). Install the switch on the steering wheel. Be sure to fuse. Shines...