Solray SR-6021 F8T5/850 8 Watt T5 5000K Fluorescent Tube Daylight Bulb 6 Pack Sold in a pack of 6 bulbs. 8 watt fluorescent light bulbs. Color Temperature: 5000K - daylight. T5 bulb with a 12 inch length. Has a double extra long life of 20,000 hours.