Pack of 8 F21T5/841 21 watt 34" Straight F21 T5 Mini Bi-Pin (G5) Base, 4,100K Cool White Octron Fluorescent Tube Light Bulb, Fluorescent & Neon Tubes - Amazon Canada
21W T5 Programmed Rapid Start 5000K Linear Fluorescent tube, Major Brand watt 5000k daylight 800 series phosphors f21t5/850 major 5000k watt 5000k daylight 800 series phosphors f21t5/850 major 5000k f21t5/850 major