Application: 1) Audio amplifier equipment 2) Communication equipment 3) Medical equipment 4) Electric control equipment 5) Lighting and Etc. Inspection subject: 1.No-load test (Included no-load voltage, no-load current and no-load loss) 2.Load test (Included load voltage and temperature rise) 3. Inductive voltage test 4.DC resistance test 5.Insulation resistance 6. Hi-POT test CRGO 7.Outlook inspection