Overhead projector is engineered for durability with hardened, break-resistant stage glass. The durable stage glass can result in less maintenance, interruptions and repair expenses. A closed singlet projection head protects the mirror to keep dust away from the optical surfaces and makes it easy to focus. 2,500 lumens of light can enhance your visuals even with the room lights on for note-taking. Features an articulating closed singlet projection head for clear images throughout the tilt range and extra lens and mirror protection. In-circuit resistor extends lamp life. 10" x 10" staging area gives you room to maximize your message. Overhead projector offers 10' power cord and tangle-free cord storage. Weighs 17.8 lb. Voltage rating: 120VAC, 60Hz. Thermal protection circuit cuts power to the lamp if the projector exceeds safe operating temperature.