The ProLED® HID Retrofit Series lamps are an easy to install LED solution for post top and high bay fixtures. ProLED HID Retrofit lamps offer an energy-efficient alternative to traditional High Pressure Sodium and Metal Halide lamps. This lamp replaces a 175W HID lamp/bulb. The 45W ProLED HID Retrofit lamps can be used in enclosed luminaires. The series is available in both E26 Med and EX39 Mogul bases with 4000K or 5000K color temperature options.