Voltage Regulator, Transformers, Variac manufacturer / supplier in China, offering Tmk 2200W Step up Transformer 110V 220V Single Phase Voltage Transformer with USB Port, European Standard Multi-Purpose Power Socket with USB and Type-C Ports 2m 5m Power Cord 10A Power Strip, Foreign Trade Hot Selling Multifunctional Socket Universal Power Strip Colorful Socket with Surge Protector and so on.