(2 Pack) 20 Watt T12 Fluorescent Tube Light Bulb, coated with Lumativ, a patented, photocatalytic coating that cleans and purifies the air using a light activated Photocatalytic process and Nanotechnology that breaks down volatile organic compounds (VOCs), odors, and a variety of airborne pollutants. In addition to its ISO-tested and proven air-cleaning capabilities, LumActiv generates a superhydrophilic, self-cleaning surface. LumActiv combines photocatalytic TiOâ‚‚ and advances in nanotechnology to create the most advanced light-activated functional surface coating on the market.......The 20-watt Philips - F20T12/CW/ALTO T12 linear tube features a vivid mean lumen output of 1,050 while producing a whiter, more natural color for either commercial or residential applications. It has a stark Cool White color temperature of 4200K and an average life of 9,000 hours. This fluorescent tube is perfect for high or low installations and can help you save energy with a fluorescent ballast. 20W Cool White 4100K - F20T12 - 24 Inch Replaces Sylvania F20T12/CW GE F20T12/SP41 Philips F20T12/CW/ALTO