Sylvania 64816 - MS175/C/PS/BU-ONLY 175 watt Metal Halide Light Bulb HID Bulbs produce high output for their size making them a compact powerful &amp; efficient light source HID Bulbs are used for general lighting, professional lighting fixtures, growing applications HID bulbs put out around 3-5 times greater output (lumens per watt) than traditional halogen bulbs Sylvania ED28 bulb, 175W, Base: E39 Mogul Screw, Rated Life (hours): 15000, Color Temp: 3700K, Lumens: 12500LM