The Stormforce 3 Watt LED Eiger headlight is easily rechargeable via the built-in mini USB socket. Featuring a 3 watt hi-power white LED and twin red night light LED's. The headlight provides a powerful 110 lumens output and 3.5 hour battery life. Complete with an elasticated headstrap and glow in the dark function buttons. Stormforce delivers ultimate performance whatever the challenge.