R&D, sales, maintenance, leasing and technical services of lamps, lighting products, LED products, special lighting equipment and control systems; R&D, sales, maintenance, leasing and technical services of solar lighting systems and emergency power supplies; R&D, sales, maintenance, leasing and technical services of electromechanical equipment; emergency rescue equipment, safety equipment, labor protection supplies, security equipment and signs , technical development, sales, maintenance and technical services of low-voltage electrical appliances, Wujinjiaodian, wires and cables, electrical appliances, instruments and office machinery; energy-saving testing, evaluation, transformation; contract energy management; large-scale integrated circuit chips, power line carrier communication products, intelligent robots and automation equipment, emergency robots, infrared thermal imaging equipment, software and hardware of smart home control systems R&D, sales and technical services; professional contracting of urban and road lighting projects; development and sales of computer software and information system software; design and R&D of integrated circuits; design, R&D, sales and leasing of drones and supporting products; design, R&D and sales of lighthouses, self-loading and unloading lighthouses and shelters; development and sales of video camera equipment, 4G and 5G transmission equipment and intelligent control systems sales; development and sales of video transmission monitoring lighting systems, smart home systems, and explosion-proof electrical products; development and sales of software and hardware products for networks, communications, and information systems; import and export of domestic trade goods and technology; research and development, sales, maintenance, leasing, and technical services of industrial drainage devices; research and development, sales, maintenance, leasing, and technical services of power products; research and development of scientific and educational instruments , sales, maintenance, rental and technical services; research and development, sales, maintenance, rental and technical services of teaching equipment. Machinery equipment, hardware products, electronic products: sales of agricultural machinery, auto parts, motorcycles and their parts, electric lighting equipment, electric motors; Internet of Things technology research and development; Internet of Things technical services; sales of mechanical and electrical equipment; sales of electrical equipment; hydraulic power machines Sales of machinery and components; sales of labor protection supplies; sales of cameras and equipment; sales of audio equipment; sales of security equipment; sales of rail transit engineering machinery and components; sales of artificial intelligence hardware; emergency rescue services; satellite technology comprehensive application system integration; sales of satellite mobile communication terminals; sales of underwater systems and operating equipment; sales of ships; sales of water transportation equipment; corporate management consulting Consulting; information consulting services (excluding licensed information consulting services); sales of electronic measuring instruments; sales of intelligent unmanned aerial vehicles; sales of wind and electric tools; sales of generators and generator sets; sales of wearable smart devices; sales of fire-fighting equipment; production of special labor protection products; sales of special labor protection products; sales of diving and rescue equipment; sales of special equipment; research and development of police equipment , Production, processing and sales; production, processing and sales of smart helmets; rental of special equipment; sales of smart warehousing equipment; sales of pumps and vacuum equipment; safety consulting services; manufacturing of intelligent unmanned aerial vehicles; manufacturing of wind and electric tools; manufacturing of generators and generator sets; manufacturing of wearable smart equipment; manufacturing of diving rescue equipment; manufacturing of pumps and vacuum equipment; and manufacturing of special operation robots. Production of lamps, lighting products, LED products, special lighting products, solar lighting systems and emergency power supplies, software and hardware production of robots and automation equipment, production of intelligent lighting systems and signs; installation and commissioning of lighting equipment, control systems, and power equipment; professional contracting of urban and road lighting projects; production of drones and supporting products; production of lighthouses, self-loading and unloading lighthouses, shelters; video camera equipment, 4G, 5G transmission equipment, intelligent control systems, Production of video transmission monitoring lighting systems, explosion-proof electrical products, network, and communication software and hardware products; production of industrial drainage devices; production of scientific and educational instruments; production of teaching equipment; production of police equipment; production of smart helmets; production and operation of radio and television programs; automobile sales; manufacturing of Internet of Things equipment; manufacturing of mechanical and electrical equipment; manufacturing of hydraulic power machinery and components; production of labor protection supplies; manufacturing of security equipment; manufacturing of audio equipment; and manufacturing of cameras and equipment.