Sylvania 67559 (2-Pack) LU100/PLUS/ECO 100-Watt High Pressure Sodium HID Light Bulb, 2100K, 9800 Lumens, E39 Mogul Base Color/Finish: Clear Color Temperature: 2,100K Average Lifetime: 24,000 Hours Lumens (light output): 9800 E39 Mogul base