Ac 110v 100w 40k Ultrasonic Cleaner Power Driver Board+1pcs 60w 40k Transducer For Ultrasonic Clean | Fruugo TR
Vibrator Circuit Use Ultrasonic Driver Circuit 2000W 28kHz/40kHz for Ultrasonic Transducer - China Ultrasonic Generator PCB, High Power Ultrasonic Generator PCB | Made-in-China.com