This Precision Lighting F32T8TL741AL shatter-resistant linear fluorescent bulb , coated in silicone, operates at 32 watts and has a color temperature of 4100K. The lamp has an initial lumen output of 2,800 lumens and an average life of 36,000 hours. The PET coating around the tube has U.V. protection against yellowing, fading, and clouding. It is extremely strong, puncture resistant, and lightweight. With its medium bi-pin base, this linear fluorescent T8 lamp produces a bright white light and is perfect for industrial lighting, commercial lighting, and business lighting.