GE 72130 (F32T8/25WSPX41EC) T8 linear fluorescent tubes are built to last with an average life rating of 50,000 hours. These Ecolux Starcoat 25-watt lamps have a coating that eliminates the need for lower quality halophosphor coating and reflects UV light more effectively. The triphosphor coating gives you an excellent color rendering and lumen maintenance performance. With a 4100K, cool white color temperature and a CRI of 85, these fluorescent lamps are a practical solution for commercial environments, manufacturing areas, and everything in between. GE Ecolux Starcoat T8 lamps are environmentally friendly, have an extremely long life and save energy. Case contains 36 lamps.