Electronic Ballast with Audible and visual alarm. Kill 99.99% Bacteria. This system is designed for both mains and rainwater supply to kill 99.99% of bacteria in untreated water supplies. UV technology has been trusted as a safe, cost-effective way to purify water and eliminate harmful microorganisms. It is a proven endorsed technology that is currently being used by thousands of cities, bottled water manufacturers and homeowners around the world. UV does not change the taste, odor or color of the water. More effective than chlorine: Unlike chlorine, UV systems are effective against both Cryptosporidium and Giardia. UV systems are capable of treating a single faucet or an entire home in a minimal amount of space with the only maintenance being an annual lamp and filter replacements. If you are on tank water this is a perfect cost effective quality combo that will offer complete protection against Bacteria Coli, Giardia and Cryptosporidium. UV sterilizers use the 304 stainless steel inside and outside. The main internal and external are polished to enhance the UV irradiance. Assembling with the high purity quartz tube, matching with the appropriation UV lamp tube for water treatment, sterilization strong, long time, stable and reliable operation, its bactericidal efficiency is more than 99.99%. Lamp lifetime is about 8000 hours. Widely applied in medicine, food, drink, life, life and electronics and other fields. Food processing industry, including juices, milk, drinks, beer, practical oil and canned food. Hospitals, various laboratory and high levels of pathogenic body water disinfection. Households building, residential, office buildings, hotels, restaurants, water factories. Purification and disinfection of shellfish, fish cleaning and disinfection. Military camp, field water supply system. Swimming pool, other recreational water disinfection. The item “Ultraviolet Sterilizer Stainless Whole House Water Filter System 12W” is in sale since Friday, January 24, 2020. This item is in the category “Home Appliances\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “dousc12″ and is located in St Kilda, VIC. This item can be shipped worldwide.