Brotech is a professional design and manufacture of microcontroller soft star dc to ac power inverter. Brotech is not only provides power inverters, (150e~3000w) we also provides power inverter with battery charger. (max 10a) Brotech r&d team always researches the stable and efficient electric circuit and find the economical components these products, so as to pass on the competitive prices to customers, Enabling them to make a sizeable profit. We pay careful attention to your request so as to handover a product made to order. We not only have achieved E-mark, CE abd Rohs certificate, but also gained ISO 9001:2000 cerification.