These GE 46760 T5 linear fluorescent tubes from the Ecolux Starcoat family provide long lasting shatter resistance throughout its 30,000 life hours. These T8 bulbs operate at 54 watts and 117 volts with a 3500K warm white color temperature. The FEP coating around the tube is extremely strong, puncture resistant and lightweight. The bulb will not yellow, cloud, or crack when reaching temperatures up to 400 degrees Fahrenheit. In the event of breakage, the glass, phosphors, and mercury remain trapped within the FEP protective envelope. These lamps can then be safely removed and disposed of properly with no harm to people or surroundings. Case contains 40 lamps.