Technology development and sales of electronic products, digital products, remote sensing lighting products, smart LED lighting products, computers, and mobile phone peripheral products; domestic trade; import and export of goods and technology. (Excluding items prohibited by laws, administrative regulations, State Council decisions and items requiring pre-approval); Wholesale of electronic components; Retail of electronic components; Sales of semiconductor lighting devices; Sales of display devices; Sales of electronic special materials; Sales of lamps; Sales of lighting appliances; Sales of household products; Sales of plastic products; Wholesale of daily necessities; Sales of daily necessities Sales; Internet sales (except for sales of goods that require licenses); sales of metal tools; sales of special equipment for the production of lighting fixtures; sales of household appliances; sales of household appliance spare parts; sales of rubber products; retail of daily household appliances; sales of intelligent power transmission, distribution and control equipment; sales of distribution switch control equipment; sales of integrated circuits; wholesale of hardware products; Five Retail sales of gold products; sales of optoelectronic devices; sales of special electronic equipment; sales of power electronic components; sales of instruments; sales of intelligent instruments; manufacturing of instruments; manufacturing of intelligent instruments; repair of instruments; manufacturing of hardware products; manufacturing of household appliances; manufacturing of electrical accessories; manufacturing of distribution switch control equipment; manufacturing of electronic components manufacturing; manufacturing of lighting appliances; manufacturing of other electronic devices; manufacturing of semiconductor lighting devices; manufacturing of special equipment for the production of lighting appliances; manufacturing of plastic products; manufacturing of rubber products; manufacturing of metal tools; manufacturing of daily necessities; manufacturing of household products; manufacturing of special electronic materials; manufacturing of power transmission, distribution and control equipment; and sales of functional glass and new optical materials. Production of electronic products, digital products, remote sensing lighting products, smart LED lighting products, computer and mobile phone peripheral products and spare parts.