This Sylvania 64471TC (PFA-M175/U) shatter-resistant Metalarc metal halide light bulb features a clear, high-temperature P.F.A. coating and operates at 175 watts. The P.F.A. coating (Teflon) around the bulb is a very unique material that combines extreme temperature resistance with high clarity, excellent adhesion, and high impact strength. Use this metal halide bulb in retail, food service, and livestock industries to provide safe and effective shatter protection over food processing, preparation areas, people, and animals. With a mogul (E39) base and an average life of 10,000 hours, this Sylvania 64471 light bulb is the only option when safety is a concern!