we are specialized in research and development supporting the production of the solar energy photovoltaic system such as controller,inverter,solar home system,ect.The annual capacity is more than 300,000sets.we strictly controlled our product's according to the IS09001:2000 quality managment system standard,and the goods which were sold to europe,australia,afric,middle east though by the state administration for commodity inspection(like CE,ROHS).Product's design,quality,after-sale service is highly appraisel by the majority of ours users.