This replacement 300W P-VIP lamp is a metal halide lamp provided to you by Christie.¤¤This lamp is user-replaceable (following Christie's lamp replacement procedures) and will last up to 2000 hours (typical).¤¤The benefits of using a metal halide 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 (wattage, temperature change) are reduced.