I used this once to projector to trace drawings on a wall to paint. Video shows light is working as well as the cooling fan. I purchased new and it’s still in great condition. From the website: Apollo Horizon Overhead Projector can brighten up your presentation. The open head, double fresnel lens keeps the projected image clear and even at corners, which assures edge-to-edge sharpness and brightness. Features 2000 lumen light output and 10" x 10" stage glass surface area. A built-in high-efficiency cooling system prevents overheating. Plus, the high/low lamp controls help extend the life of the projector. Weighing just 12 lbs. and with 2 carry grip handles, the projector can be easily moved from classroom to classroom.