emergency lantern;rechargeable lantern;emergency light Specifications Main features ·Built-in one 4-plain-stitch fluorescent tube(9W). ·Built-in protective circuit against overcharging or overdischarging.. ·Built-in automatic emergency circuit. Light sourcesFluorescent tubePower supplyAC110-240V 50-60HZBuilt-in batterySealed lead-acid battery, rechargeable (6V 4AH)Charging time18-24 hoursOperating time45 hours To prolong the battery life, when its electricity is run out, it requires a timely recharging.