Prolume 13 Watt CFL Compact Fluorescent Full Spiral Warm White 2700K Medium Base Full Spiral Long Life 12,000 Hours, Lasts 11 years 13 Watt Replaces 60 Watt Warm White 2700K Medium Base, 900 Lumens, 2 Year Warranty Saves $56.40 in Energy Costs Per Bulb