... free Lead-Acid batteryBattery easy replaceableMaterial:ABS&PS Working Mode:7-8hours continuous working time Charging time40hours for bright ... level, 20hours for brighter ,12hours for brightness Usage Mode:For emergency, safety, auto, basement, indoor and outdoor etc ... BEING USED FOR OVER 3 MONTHS. 2012 new&hot design 1w SUPER BRIGHT LED rechargeable multifunction camping lantern MZ-817, ...