This 4 foot linear fluorescent tube operates at 40 watts. It has a medium bi-pin base, color temperature of 3500K, and an average life of 20,000 hours.
This Sylvania 24537 F40T12 linear fluorescent bulb operates at 40 watts and has a color temperature of 3500K. The lamp has an initial lumen output of 3,200 lumens and an average life of 20,000 hours. With its medium bi-pin base, this linear fluorescent T12 lamp produces a bright white light and is perfect for industrial lighting, commercial lighting, and business lighting.