These Energy Miser FT36W/2G11/835 sahtter-resistant compact fluorescent tubes provide long lasting shatter resistance throughout its 12,000 life hours. These T5 lamps operate at 36 watts with a 3500K halogen 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.