国产成人亚洲精品无码av大片-亚洲国产综合精品 在线 一区-18精品久久久无码午夜福利-亚洲国产一成人久久精品

Example diagram of the -20W project of the first good XinDa photovoltaic power system

20W small power generation system is targeted at customers who are more sensitive to price. They are used for basic living electricity, such as lighting, small electronic equipment, electricity and charging. Low power and low cost design, easy installation and convenient use.