Features and Benefits: This lamp is a high-intensity 13 watt fluorescent lamp that is rated at 10,000 hoursIt produces the equivalent light output of a 75 watt incandescent bulb. It has undergone a patented process which makes it 10 times more impact resistant than before the process Length: 11in. Tube diameter: 2-1/4in. Voltage:†120 ....(more info)