Specification1.Led Lights: 5PCS Cool, 5PCS Warm2.Power by USB--5V/500MA 3.Bendable and Flexible, 4.Gooseneck length:170MM5..USB power supply by USB Jack, such as Power bank, usb charger,PC, notebook etc.Function1.USB LED Book lamp or mooding light2.Led light brightness: 40LM±2 3.Voice control, no need to manually adjust the brightness, color,power on / off Item size: 56X270(max)MMPackage: 50.5x35.2x29CM, 0.052cbm,100pcs/ctnBox Size:52x48X166MMGW.NW:8/9KGS