The F14T5 lamp is a 14 watt T5 programmed start linear fluorescent lamp. CRI of 85 and 35,000 hr life at 12 hours per start. Choice of color temperature between 3000K, 3500K, 4100K, and 5000K. Miniature Bi-Pin (G5) base. Approximate initial lumens of 1200. Sold in case of 25 pcs.