FEATURES: Ozone production: 600mg/h; Power supply: Only 220VAC, 50Hz(Not have 110V);Power consumption: 12 W; Maximum operating time: 30 minutes per use; Function Time controller: 5,10,15,20,25,30 min; Size: 270 x 190 x 75 mm. ENERGY SAVING: The energy-saving device uses only 12 watts of electricity and has a long shelf life. (Power supply: Only 220VAC, 50Hz(Not have 110V)). LED DISPLAY: A simple LED display to make it very easy to use the desired settings.