Powered by built-in 3.6v/1200mAH Ni-MH rechargeable battery. Fitted with 15 pcs of 'Toyoda Gosei' white colour LED bulb with more than 50000hrs bulb life. Can be charged by BS adapter or 12v car plug or winding the hand crank. Collapsible to save space. 2 levels of brightness; 9 LEDs or 15 LEDs. 1 minute winding can power 8 minutes on 9 LEDs or 5 minutes on 15 LEDs. Lantern will run approx 6hrs on 9 LEDs or 4hrs on 15 LEDs when battery fully charged by BS adaptor or 12v car plug. BS adaptor and 12v car plug supplied. Emergency siren. Size (H)11.5, (W)10.8, (D)22.5cm. Weight 0.5kg.