Rite Lite LPL505B Hi-Output LED Twist Computer/Book Light w/base One hi-output super bright white LED Twist light head design Powered two ways - plug into any USB port or plug into the battery operated base (2 AAA batteries, not included) Flexible light head and neck adjust allowing you to direct light exactly where you need it Perfect for school, work, hobbies, crafts, travel and so much more!