A suitable place for a variety of indoor and outdoor workplaces. Chinese coal industry, PetroChina, Sinopec, CNOOC, electric power, metallurgy, railway, steel, shipbuilding, military, aerospace, public security and fire, chemical, government departments, venues, transportation and large enterprises use fixed lighting needs. Second, the performance characteristics 1, humanized design, fashion reflects the modern aesthetic requirements of industrial lighting and human nature full concept of harmony, integration. 2, the use of professionally designed petrol station lighting, not only can make pilots within a certain distance clearly identify the location and outstanding petrol station brand logo, but also in daily operations can achieve energy savings. Than traditional lighting energy savings of 50% or more. Lowest initial investment cost and the cost of daily operations in order to achieve energy efficiency. 3, the light source selection with a high intensity discharge lamp as the light source, high luminous efficiency, soft lighting, illumination uniformity, the average life of up to 15,000 hours, CRI> 90. 4, the appropriate level of illuminance and vertical illuminance, a comfortable color temperature and color rendering, low glare, more secure, professional design, reduce direct glare to make driving more comfortable and safer. Comfortable working environment, harmonious atmosphere, good illumination uniformity. Professional light distribution, wider light distribution, reduce the required number of lamps. 5, ceiling, embedded installation, simple maintenance, easy operation and low cost. The main technical parameters Parameter Name Unit Value Rated voltage V 220 light double inner tube 40W HPS gas discharge lamp luminous flux Im 43000 H 15000 250W average life of the average life of flux Im 27500 H 15000 MH 400W discharge lamp luminous flux average life Im 36000 H 20000 average life 250W Luminous Im 21000 H 20000 Dimensions L × W × H mm 518 × 518 × 222 Weight Kg 9.4