NINGBO YONGFENG ELECTRIC GROUP. IS ONE BIG ELECTRIC GROUP IN CHINA. OUR COMPANY IS MANUFACTURE AND EXPORT ELECTRIC PRDUCTS AND HOME APPLIANCE GROUP. SUCH AS: A.C VOLTAGE REGULATOR; A.C STEP UP/ STEP DOWN TRANSFORMER; A.C CONTACT VOLTAGE REGULATOR; D.C REGULATED POWER SUPPLY; DC-AC INVERTER; BATTERY CHARGER; AMPLIFIER; UPS; ADAPTOR; STEAM IRONS; ETC IF YOU HAVE ANY QUESTIONS, PLS CONTACT