6 Qty. Halco 22W FC8 T9 8IN CircLine Daylight FC8T9DL 22w Linear Fluorescent Rapid Start Daylight Lamp Bulb 22 Watts - 6500K Color Temperature Bulb Base : G10q Bulb Shape : FC8T9 8 Inch Circline Fluorescent Average Life (Hours) : 10,000 Length (In.) : 8 - Tube Diameter (In.) : 1.1