This replacement 220W UHP (Ultra High Performance) is a metal halide lamp manufactured by Philips, provided to you by Christie. This lamp is user replaceable & will last up to 3000 hours (low power mode). The benefits of using a UHP lamp is that it allows for a smaller & lighter projector (because the power supply is smaller & lighter), a cooler running, quieter, & less expensive-to-operate projector (because of the lower wattage) & a longer lamp life (because the stresses on the lamp are reduced).