T8 Lamps can come in all wattages and lenghts. All are about on inch around and are a great energy saving lamp for multipule application. We offer all type of Kelvin temp to choose from 3000, 3500, 4100, 5000 and 6500. We offer the highest quality t8's in the industries. Our brands that we stock and carry are Phillips, GE, Eiko, Sylvania, Top Star, and Espen.