This is a plug and play headlight for Bafang BBS02 motor systems that have a "light-out" plug from the motor. Light can be controlled via display wchich is very nice and convenient. Light pattern is a tight "rifle" style vs. the broad "shotgun" style. It can be used on systems without this plug, but custom wiring would be needed. If unsure, ask. No hardware included since every bike requires differentiate/lengths hardware to fit properly.