9 Watt UV Bulb 9W G23 Base 9Watts Ultraviolet Germicidal Lamp Size 6.5 Inch 9 Watt UV Bulb 9W G23 Base 9Watts Ultraviolet Germicidal Lamp Size 6.5 Inch Anyray Work with 110 Volt 120 Volt 130 Volt 220 Volt 230 Volt 240 Volt 10,000 hours or more of normal usage. Match the wattage or length of your bulb G23 base , Prevents DNA of germs to reproduce. 9 Watt G23 base UV-C 100% Ozone Free Short-wave UV radiation with a peak at 253.7 nm (UVC) for disinfection purposes