Bike Light Set, AVANTEK Rechargeable Bicycle Headlamp The durable front light features three modes  high, low and flashing  emitting a clear white light (up to 550 lumens) that covers a range of 200 meters. It allows you to see clearly in dark and keeps you safer when riding A built-in USB port provides charging power on the go; versatile, and easy to use, the front headlight is completely removable for use as a powerful flashlight Includes a LED tail light functioning in three LED modes (2 x 1.5 V AAA batteries included) for enhanced visibility in all directions The rechargeable lithium-ion battery lasts up to 3.5 hours in high mode, giving extended time between charges Easy to install, the adjustable mounting strap fits any size of handlebars and is compatible with street, mountain, and children's bicycles