SYLVANIA 64787 - 750 Watt - BT37 - SUPER METALARC - Pulse Start - Metal Halide - Unprotected Arc Tube - 4000K - Mogul Base - ANSI M149/E - Base Up Burn (Through Horizontal) MS750/PS/BU-HOR/BT37,Sylvania,046135647871" /> Color/Finish: Clear Color Temperature: 4,000K Average Lifetime: 16000 hours Lumens (light output): 80000 CRI: 65