... to control recharging time. 9.The modified sine wave inverter comes with informative LED indicator and alarming functions. 10 ... have CE, SONCAP, GOST, UL(pending) .modified sine wave inverter lntegrating research & development, production and marketing, Yiyuan Electric Co., ... salable in the world market, like Russia, Southeast Asia, Europe, America, the Middle East and Africa. With extensive usage ...