Compact Fluorescent Lamp, Plug-in, 18 Lamp Watts, 120 Voltage, Lamp Designation F18TTL/841, T5 Biax Lamp Shape, 2G11 Base, 82 CRI, 4100 Color Temp., Cool White Lamp Tone, Average Life 20,000 Hours, 1100 Initial Lumens, 1100 Mean Lumens, Length 8.7 In., Dimmable, Rapid Start, Ambient Temp. 77 Deg. F, Min. Starting Temp. 5 F, Product Contains Mercury, Refer To Applicable State Regulations for Disposition After Use, Case Quantity 25