Philips 140913 High Intensity Discharge High Pressure Sodium 70-Watt BD17 Medium Base Light Bulb,Philips Lighting,140913" /> Philips 70-Watt HID High Pressure Sodium light bulbs offer premium light quality and energy efficiency Ideal for use in parking lots, dusk-to-dawn fixtures, roadway lighting, and industrial and commercial applications Medium Base BD17 Shape C70S62/M for use with ANSI S62 ballast