Pack of 8 F6T5/CW 6-Watt T5 9 Inch Linear Fluorescent Light Bulbs, 4100K Cool White 9" Straight T5 Fluorescent Tube Cool White light bulbs are ideal for use in garages, workshops and basements Fluorescent lamps can cost significantly less to operate over their lifetime than incandescent lamps Ultra Bright Color 4100K, Cool White creates a work-like environment 12,000 Life Hours, G5 Mini Bi-Pin Base 420 Lumens, CRI: 85