Lamp No F28T8/850 Watts 28 MOL in/mm 48.0/1219 MOD in/mm 1.0/26 Avg Life 25,000 hrs w/ 12hr starts and programmed soft start ballasts and 20,000 hrs w/ other ballasts and shorter starts Bulb T-8 Base G13 Special Desc Three Phosphor, Rapid Start CT deg K 5000 CRI 83 Approx Initial Lumens 2800 **$10 over wrap charge applies**