This GE shatter-resistant F54T5/HO linear fluorescent tube operates at 51 watts and has an average life of 30,000 hours. It has a miniature bi-pin base and a color temperature of 5000K. These Mylon coated bulbs provide the ultimate protection for your employees, customers, and products from the hazards of glass contamination caused by impact, accidental dropping or thermal shock. It is extremely strong, puncture resistant, and lightweight. These fluorescent lamps are perfect for any residential or commercial application.