... high frequency transformer size(unit:mm)EI40/A high voltage transformer 220v to 110v 10kw Frequency range: 1KHz to 200kHzOutput power: 1W to 10,000WOutput voltage ... .01A to 1000ATesting Items: Turns RatioInductancePhase TestDC resistance testSafety testHigh voltage testApplications: TV sets, Microcomputer equipment, printers, TerminalsChargeUPS, VCD/DVD players ...