Light can be attatched to either the front or back of the motorized bike. This is more of a safety light than a headlight. This is a fun light that will give out colorful light when pressing the green button, there are also seven different functions, steady, fast flash, slow flash, flash clockwise, flash counterclockwise, fast chasing, and slow chasing. Powered by 2 AAA's (not included). Your lights at night can be your best friend, please ride safely.