This Philips 27249-2 shatter-resistant 32-watt, F32T8 linear fluorescent tube has a color temperature of 3500K, a CRI of 78, and an average life of 30,000 hours. It features a shatter resistant P.E.T. coating. The PET coating around the tube has U.V. protection against yellowing, fading, and clouding. It is extremely strong, puncture resistant, and lightweight. These fluorescent lamps are perfect for any residential or commercial application. Case contains 25 lamps.