MULTI-FUNCTION EMERGENCY LIGHTNIG-LAMPS 3x1.5v" AA" size batteries .High-Brightness LED lights, remote irradiation up to 40 meters .LED service life of 100, 000 hours, no replacement for life .Energy-saving, electricity-saving, lit up for more than 16 hours .Small in size, folding, multi-functional, and easy to carry, can be used for living and working lighting ect.