The Gepe Slim Lite Illuminator 5000 is a small, economical viewer for 4x5" negatives and slides. The viewer is supplied with a 5000K color-corrected, flicker-free lamp that will provide approximately 10,000 hours of accurate light. It has a viewing area of 4.0 x 5.0". Power is supplied by 6 "AAA" batteries (not included) or an optional 9V AC adapter (sold separately). The unit also comes with a protective slip pouch.