Through technological advances and the highest grade components, these shatter- resistant Sylvania 21998 T8 fluorescent lamps can save up to 40 percent on energy costs with no loss of light. These T8 lamps provide long lasting shatter resistance throughout its 30,000 life hours. These lamps operate at 32 watts with a 3500K warm white color temperature. The PET coating around the tube has U.V. protection against yellowing, fading and clouding. The bulb is extremely strong, puncture resistant, and lightweight. Economical as well as environmentally, these fluorescent lamps are perfect for any residential or commercial application. Case contains 30 lamps.