Research on solar power generation system technology; Production, processing and sales: Inverter, uninterruptible power supply, photovoltaic charger, solar street lamp and solar power generation system equipment, solar panel and solar camera; R & D and sales of power supply equipment, batteries, electronic products, electronic components and lighting electrical equipment; Import and export of goods or technologies (excluding those prohibited by the state or involving administrative examination and approval). (for projects subject to approval according to law, business activities can be carried out only after approval by relevant departments)