This replacement 330W UHP (Ultra High Performance) is a metal halide lamp manufactured by Philips, provided to you by Christie.This lamp is user replaceable and will last up to 2000 hours (typical), up to 3000 hours (eco mode).The benefits of using a UHP lamp in this Christie projector is that is allows for a smaller and lighter projector (because the power supply is smaller and lighter), a cooler running, quieter, and less expensive-to-operate projector (because of the lower wattage) and a longer lamp life (because the stresses on the lamp are reduced).