Through technological advances and the highest grade components, these shatter resistant Sylvania 21999 T8 fluorescent lamps can save up to 40 percent on energy costs with no loss of light. They provide long lasting shatter resistance throughout its 25,000 life hours. These lamps operate at 32 watts with a 4100K cool white color temperature. The PET coating around the tube has U.V. protection against yellowing, fading, and clouding. Sylvania T8 lamps are extremely strong, puncture resistant, and lightweight. These fluorescent lamps are perfect for any residential or commercial application. Case contains 30 lamps.