The LampCraft GigLight and Super GigLight feature ample and even illumination of 2 pages at once with a daylight glow that's easy on your eyes. The PowerBright LED is rated at 50,000 hours. They have fully adjustable arms and include a handy carrying case. The Super GigLight is 4X brighter than the GigLight. Powered by four (included) AA batteries or an optional AC adapter.