Sunlite FC40/2C/30K Fluorescent 40W 2C Circline Ceiling Lights, 3000K Warm White Light, GU10Q Base This 2C Cirline Bulb Efficiently Utilizes Only 40 Watt Of Energy To Produce A Warm White Light Emits A Bright Yet Comfortable 2800 Amount Of 3000K Light And Comes Equipped With A Gu10Q Base These Long Lasting General Purpose Lamps Average Up To 10000 Hours Of Three Hour Day Operations Ideal For A Wide Range Of Settings From The Household, The Office, Retail Locations, Diners And More Outlives, Outperforms, And Replaces Your Typical Incandescent Equivalent Lamp While Significantly Cutting Energy Costs