Philips HID light bulb is an efficient lighting solution for industrial applications such as warehouses, post top lights, and parking lots. It has a long life of up to at least 24,000 hours and is available in a wide range of bases and-Wattages. Philips Ceramalux HID bulb is ideal for use in security lighting, roadway lighting and warehouses. Available in both High Presure Sodium and Metal Halide.