The lighting design of the underground shopping mall Wang Dongli-like lighting, accent lighting and decorative lighting, dealing with the relationship between the good and discussing the choice of lighting source. Create a good shopping environment for customers to increase the sales rate. In addition, effective energy saving measures have been proposed. In recent years, many underground shopping malls have been put into use. The lighting design of the underground shopping mall is very impressive. Good, the lighting design should not only give Gu Fang a bright, comfortable environment, but also show the texture of the goods. To enhance the customer's desire to purchase and purchase fun. Increase the sale rate. At the same time, it is necessary to consider lighting energy saving, thereby reducing the operating costs of the mall. According to the characteristics of the underground shopping mall, this paper talks about several questions that should be dealt with in the lighting design. 1 The lighting at the entrance of the underground shopping mall should be emphasized. During the day, people from the bright ground space to the underground space, the human eye has a dark adaptation process. This process also occurs from the underground space to the ground at night. The human eye will feel uncomfortable and affect visual performance. Therefore, the light transition should be handled well. In case of conditions. Transition lighting should be combined with natural light and artificial lighting. For example, there is a natural light window above the stairs. Consider transition lighting. During the daytime, the brightness change at the entrance should be from 101 to 151, and the indoor and outdoor brightness changes at night should be taken as 31. It is recommended that the illumination of artificial lighting in the ground floor of the underground shopping mall is 150200 3001. The night illumination is 507501. The entrance and exit lighting is 50100 50. According to the different outdoor brightness, different values ​​should be taken. The entrance lighting of the underground shopping mall should be processed in addition to the transition lighting. The mouth building should also be used. Or use the floodlights to brighten the mouth store. The pedestrians are strongly influenced by the store. 2. The general lighting of the store should be handled. The relationship between the accent lighting and the decorative lighting section should be considered in accordance with the conditional display mode of the store where the content of the merchandise is located. The illuminance and the illumination of the accent lighting should be properly proportioned. The layout of the luminaire should be simple and clear. It is necessary to make a certain degree of appropriateness in the store. If the illumination of the general illumination is very high, in order to pay attention to the customer, it is necessary to increase the brightness of the key illumination several times. As a result, the power is focused on the key lighting to focus on the main products and main places. Illumination to increase the customer's desire to purchase, depending on the type of merchandise. size. The display method depends on the method. There must be good illumination that matches the lighting in the store. When choosing the lighting method. Also consider the three-dimensionality of the product. Gloss and color, etc. The illumination of the accent lighting should be 35 times that of the general illumination. If you need to highlight the luster of the product surface, you should use a high-intensity light source; if you want to highlight the three-dimensional sense and texture of the product, you can set strong directional light. If you need to highlight the color of the product, you should use high color rendering light. From the current practical application point of view. The luminaires can be combined at will. The spotlight, which can be used separately, has an adjustable direction. There is a great advantage that decorative lighting is the atmosphere lighting of the current store business status and customer character. If the shape of the luminaire or the luminaires are arranged in a decorative case, the store produces a vibrant light. It is important when using decorative lighting. Can't use him as a general lighting. Otherwise, it will weaken the impression that the goods give people. The impression of the goods is extremely important, in principle. Lighting for decorative purposes can only be considered independently. It is impossible to save the general lighting and accent lighting, in the lighting design of the underground shopping mall. Relying on the proper arrangement of lighting and accent lighting can not only create an ideal shopping environment for customers. Also, add the added value of the item. At the same time, in order to make the customers who enter the store well aware of the location of each vending office, they must basically rely on general lighting and accent lighting. Types of lamps such as decorative lighting. Configuration and illuminance differences for efficient processing. 3 Reasonable choice of lighting sources in underground shopping malls The service objects of underground shopping malls are adapted to the natural light and they enter the artificial lighting environment of underground shopping malls from natural light environment. The nature and intensity of the lighting have changed. In particular, the temperature in underground shopping malls is relatively constant. Most underground shopping malls built in recent years have air conditioning systems. Form a warm space to adapt customers to the underground visual environment. In the choice of the color temperature of the light source. It is good to choose a color temperature close to the sky. The white and bluish light of this light source gives a cool, clear feeling that can improve the negative effects of adverse environmental factors. 1 gives the color temperature of some light sources, and there are fluorescent lamps in the order of the sky color temperature. Metal halide lamps, incandescent lamps, etc. take into account the illumination requirements of underground shopping malls and the limited ceiling height. At present, the most commonly used light sources are floodlights and natural light. Light source color temperature source color temperature blue sky light fluorescent high pressure mercury lamp micro-negative sky light inflatable incandescent lamp neon light fluorescent lamp metal halide lamp white fluorescent lamp high pressure sodium lamp when selecting the light source in addition to considering the color temperature of the light source also consider the color rendering of the light source, according to 162 civil construction Electrical Design Specification. Article 15 stipulates that the general lighting of the 5th shopping mall can use the light source of the color rendering index of 70, and the specific part of the ordinary incandescent lamp. The color rendering index of the 2 series reflective ordinary bulbs is 95, and the color rendering index 1 of the 2 series fluorescent tubes is the primary color of the 8285 domestically produced, the basic color fluorescent lamp and the special-shaped fluorescent lamp type 1. The ring-shaped floodlights also have a good receiving date of 2000317, and the inverter power supply and battery charging are automatically switched. The emergency power supply has a duration of 30. It is initially invested in the province. The maintenance management is convenient for the output capacity of 1500 Jia as an example. Each set of inverter power supply includes 5,000 yuan for the battery, and can provide 30 sets of emergency lighting facilities for 40 Jia fluorescent lamps. The duration of 30 and 40 evaluation of emergency fluorescent lamps is not less than 500 yuan per set, that is, the centralized power supply device is only for the investment of scattered emergency lights. Its other feature is the combination of the inverter power unit and the protection unit exhaust fan chamber. Easy to draw power and battery exhaust. The AC power supply of the civil air defense engineering inverter unit is suitable for the power distribution circuit of the smoke exhauster, because the civil air defense project is ventilated. Power distribution and fire protection are all independent systems with protection units. Each protection unit has a ventilator room. The fire shutter connection of the fire exhaust fan distribution fire-proof unit must be automatically switched on the double-circuit load side. Therefore, the power supply of the inverter device is convenient and reliable to be connected from the distribution box of the exhaust fan. The storage of the battery in the exhaust fan room is more conducive to the timely exhaust of the battery. It is connected to the 109th page to save energy, reduce operating costs, and choose lamps with reasonable light distribution and high efficiency. Choose lamps that are easy to clean and change lights. Due to the pollution of the light source and the illuminator, the light passage is reduced, which is a cause of waste of energy, and the lamp whose life expectancy is lowered and the luminous flux is lowered should be replaced. Use electronic ballasts. The electronic ballast is essentially a power converter, which converts the alternating current frequency 501 into 25 to make the high-frequency discharge efficiency of the lamp high. For example, the efficiency of the lamp is increased by 30, and the power consumption of the electronic circuit is higher than that of the inductor. The coil is also much smaller, so the energy saving 3035, the quality of the domestic first-generation electronic ballast has been greatly improved, we can use in the design. Brightening the interior decoration can increase the reflected light, thus improving the illumination, and the quality of the light is good, which can achieve a certain energy saving effect. 1 Chen. Decorative and Art Lighting Design Installation Manual. Beijing China Building Industry Press, 1991. 2 corpse 0196, lighting design standards for civil air defense projects. 31 Ding 1692, Civil Building Electrical Design Specification 3. It's a kind of mini Power Bank with intelligent LED digital display shows power left,the high and real capacity increase battery cycle life,and makes your phone always in power.It's internal intelligent PCB board makes this mobile power bank in full protection such as over charge protection,over discharge protection,smart IC protection and temperature protection. 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