The Buhl 122 Open Head Overhead Projector is the perfect presentation tool, Built with a rugged high-tech design to withstand years of classroom and office use, this overhead features outstanding clarity and brightness with uniform light output (3000 Lumens), The Buhl 120 uses ENX bulbs, Also available in Closed Head configuration (Buhl 120) Features and Specifications: Large 10, 5"" x 10, 5"" projection stage, Easy to clean open head design, Rack and Pinion head focusing adjustment, Fold down arm for easy transport, Color-tuned balanced optics to eliminate blue and brown corners, Lamp safety switch to disconnect power when changing lamps, Top mounted power switch, ENX 360 watt lamp with over 3000 ANSI Lumens and 75 hour lamp life, UL listed, 3 Years Parts and Labor, , Warranty: 3 Years Parts and Labor, SKU: HMEBLI193