About This UV transformer/ballast with flow sensor for UVC lamps, 55-Watt, 110-Volt Compatible ONLY with iSpring whole house UV light water filter UVF55FS UL recognized component Current frequency: 60 Hz 1-year limited manufacturer warranty and lifetime tech support from iSpring water systems in Atlanta, GA. Note: UVF55FS is capable of self-cleaning. Suppose the unit has been idled for 24 hours but still has power on. In that case, it will start the self-cleaning process by turning itself on for 300 seconds to ensure that water in the reactor chamber will not deteriorate. Overview Brand : iSpring Special Feature : Programmable Product Dimensions : 5.5"L x 3.5"W x 4.4"H Material : Quartz Capacity : 12 Gallons Included Components : 1 Ballas, 1 Flow Sensor Package Information : Box Installation Type : Wall Mount Purification Method : Ultraviolet Power Source : Corded Electric