This incredibly efficient economic flashlight/lantern produces up to 100 lumens of light for up to 8 hours. With rugged ABS construction it uses safe electronic technology in Hi-output LED performance. It is rechargeable by Micro-USB and these LED bulbs have over 50,000 hour life-span, can be charged with the supplied cable from any common 5v DC output cell phone charger, even in areas without main power supply.