Low Pressure mercury lamps Emitting shortware UV this uv bulb, made of uv quartz glass and soft glass, classified to ozone and without ozone Connect into main wire voltage 220V/50Hz or 120V/60Hz with incandescent lamp and/or special made capacitor, no need of ballast, switch on and off up to more than 10000times. Applications: Germicidal lamps are used for killing and inactivating bacteria, viruses and other primitive organisms. Common uses are:  Treatment of air in hospitals and air conditioning systems  Disinfection of drinking water and waste water  Disinfection of packing materials, bottles and jars in the food processing industries  Various photo-chemical process WARNING: The radiation emitted by these lamps is extremely harmful to all living organisms. Special measures should therefore be taken to protect against direct radiation.