JQH is the leading supplier in the electromagnetic components industry, and provides customized design, manufacture and sales of electromagnetic components, power supplies and specialized transformers. The outstanding JQH products include high frequency transformers, low frequency transformers, power adaptors, open frame power supplies, PV inverters, smart digital power supplies, three phase transformers and specialized reactors, and etc. Our products have been widely and successfully used in home appliances, consumer electronics, UPS power application, LED lighting, telecom, and PV inverter applications, etc.