nextled 350 lumen foldable rechargeable work light, cob led slim work light with magnetic base. ultra bright led flashlight, cast aluminum, mechanics, car repair, outdoor, camping, emergency, garage nextled the nextled 350 lumens rechargeable cob led work light is built high quality cast aluminum frame which can withstand heavy impact. it is rated for 12 hours of work time at 50% power, and 2.5 hours at full power. the rotatable lamp head and 15lb magnetic base allow you to work under tight and narrow space. the 40 chip cob led array allows for light density up to 850% more than smd led's while consuming less power. this light is externally and internally designed for harsh conditions and dirty envionments. it is usb rechargeable and is built with a lithium ion 2200 mah battery that has a charge time of 4 hours (based on 1a). includes overcharge protection and auto idle mode.