Compact Fluorescent Spiral Lamp, Designation: 9T2/27, 120 V, 9 WTT, Mini Spiral Shape, E26 Medium Base, 12000 HR, Lumens: 550 LM Initial, 2700 DEG K Color Temperature, Warm White 82 CRI, 3-31/32 IN Length, 1-9/16 IN Diameter