Features: 1. High brightness, improve safety when you are cycling at night. 2. Three modes are replaced, no need flasher and turn signal can flash automatically. 3. Stylish and fashionable, perfect decoration. 4. Convenient and easy installation. Specifications: Black wire: tail light "-" main connection. Yellow Line: brake light "-" RED wire:brake light "+". Blue: Right turn Green: Left boxing White: Daytime running light Type: eBike rear light Flashing: 5 pieces LED Cable length: 35cm Rated voltage: 12V/48V/60V Size: As shown in the picture NOTE: 48V 60V 72V battery ----- 48V 60V 72V DC-DC converter 48V 60V 72v---12v --- 12V back light --- order 12V set 48V 60V 60V battery ------ 48V 60V 60V ----- without 12V DC-DC converter --- 48V60V taillight --- order 48V/60V set Package including: 1 * rear light sets