Topeak White Light HP 500 Headlight USB Charging

Size: L117 x W32 x H12mm Weight: 110g Luminous flux: 500Lumens High power 1W white LED 1 piece Can be charged from your computer's USB port ●Front light with a large amount of light of 500 lumens. Equipped with a "hyper constant mode" that achieves both high light output and long periods of time by changing the light output between 400 and 130 lumens.