Specification & Feature: Wattage: approx. 0.5W Powered By: USB(Adapters are not included) Size: 30 * 80 * 40mm Color of Light : Bright White Color of Shell : As show in picture Build-in switch control by push up and down the mask Bright white LEDs housed in each head with separate on/off switches Can be used free standing for laptops, orchestra pits, schools, dark clubs, etc. Package Includes: 1x Reading Light