The Buhl 9013ED is the educators" choice for general classroom use, This overhead projector is constructed of high-impact molded plastic and uses a split-case design for easy maintenance access and durability, Projector Features: E-Z clean 360 degree ergonomic open head design, with single lens, Balanced optical system (14"" focal length) provides superior edge to edge resolution, Rack and Pinion focusing, 10"" x 10"" stage provision for optional roll attachment, side to side or front to back, 3 wire AC cord safety interlock switch- UL/CSA approved, Uses 360 watt EYB which provides 2200 Ansi Lumens and 75 hours of lamp life, 3 Years Parts and Labor, , Warranty: 3 Years Parts and Labor, SKU: HMEBLI201