Parameter: Output power: 600W Input voltage: 110V,60HZ Working Temperature:-20---65degree Storage temperature: -40 ℃ - +85℃ Harmonic wave output parameters: 97%/Min Maximum operating current:10A Working frequency:20-40KHZ optional, please let us know the ultrasonic frequency you need after placing order ( You can also adjust the frequecny with the instruction of engineer according to your need).