Battery voltage :3.7V
Battery capacity: 1700MAH
USB Charge voltage/current: DC5V/500MA
Rated power: 2w
Working time :6-8hours
Material : paper+ tyvek paper
Cover color : maple / walnut
Light color : single warm, white ,or customization
Features : waterproof , environmental protection , recyclable , 360° foldable
Package : opp bag + paper box + carton
Each box contain : 1*book lamp +1*manual +1*usb Kraft box size:25*18.5*4cm(L * W * H)