120w 40KHz 110V/220V Circuit Board Ultrasonic Cleaning Machines Mainboard Power: 120W Voltage: 220V Product size: 102mm*95mm Frequency: 40KHz Customized Frequencywelocme: OEM/ODM Product Name: circuit board Product Model: GB-DG2-J120W Porduct Size:102*95 Power:120W Frequency: 40KHz Voltage:110/220V byJuly 4, 2026