Projector Lamp is an electrical light source typically used in data and video projectors. It uses electricity to produce a bright light that projects images onto a screen. Projector Bulb is the part of a projector that provides power to the laser and lens. They are commonly used in homes to show movies or presentations. The lamp is a small, light bulb-shaped device that contains a vacuum-sealed Glass bulb with an internal ceramic ball bearing that houses the filament. Which is encased in a clear glass cylinder which protects it from impact damage. A projector lamp is designed to last between 2000 and 5000 hours, with most lasting between 3000 and 4000 hours when used in an average office environment. Mostly new lamps cost approximately Rs 4000- Rs 5000.