No batteries needed, cranking for power generation, High current: Recharging 3 minute providing 60 minutes lighting time. 1) No batteries needed, cranking for power generation,2) High current: Recharging 3 minute providing 60 minutes lighting time. 3) Ideal for: home use, vehicles, boats, camping, emergency kits. 4) Battery built-in wind up recharge5)2Leds 6) Certificate: ROHS & CE