Compact Fluorescent Spiral Lamp, Designation: 13GU24/27, 120 V, 13 WTT, T2 Shape, GU24 GU24 Base, 10000 HR, Lumens: 800 LM Initial, 2700 DEG K Color Temperature, Warm White 82 CRI, 3-5/8 IN Length, 1-13/16 IN Diameter