... 2.high frequency; 3.competitive price; 4.ISO&CE installation inductor :inductor specification: primary110v,1150v,220v,230v,240v,frequency50/60HZsecondary13v,15v,customized ... material, all materials are comply with the safety standards;Universal Wound Coils,good after slaes service;long time warranty; 50/60HZ ...