Uniguardian Solray SR-6009 F28T5/865 28 Watt T5 6500K Fluorescent Tube Daylight Bulb 8 Pack Sold in a pack of 8 bulbs. 28 watt fluorescent light bulbs. Color Temperature: 6500K - daylight. T5 bulb with a 46 inch length. Has a double extra long life of 20,000 hours.