... The cleaning effect sees more bright and flashing 3. Every 5 mins to be on and off Appliaction: Suitable for laboratory, electronic ... purposes, excellent effect to clean personal articles such as gold and silver jewelry, necklaces, earrings, glasses, nozzles, watches, mobile, ... Time Control: every 3 minute to turn on and off7. Power supply: AC 110-120V, 60Hz, AC 220-240V, 50 /60Hz8. Ultrasonic power ...