1) has passed ISO 9001;2000 and CE certificate 2) power stabilizer with protections 3) 2 years warranty SVC Servo Motor Voltage Regulator Stabilizer Application: For office equipment, testing equipment, medical equipment, industrial automation equipment, household appliance, lighting system, communication system, etc, such as TV-SET,HI-FI,DVD, FAX, Copy machine, Satellite decoder, Printer, ...