UV Sterilizers are built on the property of UV radiation at 2537 Angstorm units capable of striking bacteria, algae, fungi & protozoa & rendering them harmless.  The UV units are built with high efficiency UV lamps surrounded by Quartz glass sleeves to isolate the bulbs from water contact preventing thermal shock, glass breakage & mercury contamination.  The sleeves also ensure very high transmission of UV energy with lesser losses.  A wiper assembly is provided for periodic cleaning of Quartz glass from 1500 lph model onwards.  An Electronic Ballast operating on 230V, single phase, 50 Hz AC triggers the UV bulb and ensures minimum power consumption.  The design is based on 30000 micro watt sec/sq.cm. dosage of UV radiation which destroys significant water-borne pathogenic micro-organisms effectively.