In the implementation of green lighting projects in China, we should accelerate the digestion and absorption of the production equipment and technology of imported mature metal halide lamps while expanding the quality of metal halide lamps and high-pressure sodium lamps, and expand metal halide lamps and high voltage. The proportion of sodium lamps in the production of electric light sources in China. Actively recommend and encourage the application of high-pressure sodium lamps and metal halide lamps to replace incandescent lamps with low efficacy, high-pressure mercury lamps and replace energy-saving fluorescent lamps in some applications in order to achieve maximum lighting energy efficiency and reduce environmental pollution. China's green lighting project has improved to a new level. However, due to the extremely poor color rendering performance, it can only be applied to lighting places where tunnels and other color reproduction requirements are not high.
With the increase of railways in China, the demand for lighting in tunnels, culverts and subways has increased. From the perspective of green lighting projects, the development and production of the highest luminous low-pressure sodium lamps is still an urgent task. Recently, due to the application of energy-saving light sources and electronic ballasts, lighting fixtures have been developed in the direction of being lightweight, compact, easy to install, easy to change the direction of light projection, and capable of mass production. Lighting fixtures also need to meet the requirements of clarity, comfort, glare suppression and color rendering. The optical system of the currently widely used lighting fixtures mostly uses a reflective structure. Most of the projectors are stamped and formed by thin aluminum plates, and the surface treatment of the aluminum reflecting surfaces is mostly anodized. If the processing is improper, the reflection efficiency will be rapidly reduced during use.
There are many successful and advanced experiences in the surface treatment of aluminum reflective surfaces in foreign countries, but the process technology in this aspect of China is very weak. In addition to the direct surface treatment of aluminum, and the use of mechanical processing to form a reflector, and the use of glass or other metal as a substrate, through aluminum, silver or multi-layer dielectric reflective film, significantly improved lighting Characteristics of light sources and appliances. At present, the quality of lighting fixtures in China is poor, and the lighting design standards are low. Many lighting manufacturers are still in the imitation and simple workshop production, and the production efficiency is low. In the future, we should pay attention to the design of lamps and mirrors, and strengthen the research on the processing technology of mirrors. It is necessary to manufacture fine, beautiful, generous and inexpensive appliances, and to cooperate with various energy-saving light sources to improve the lighting efficiency of the appliances and to meet the needs of green lighting to protect the environment.
The use of energy-efficient lighting lines and electronic ballasts for low-voltage tungsten halogen lamps requires additional transformers to reduce the voltage of the mains. Fluorescent lamps for low-pressure discharge of gas discharge lamps, metal halide lamps for high-voltage discharge, and high-pressure sodium lamps require a lighting circuit composed of a ballast, a starter, and a trigger to be able to ignite normally. The main energy-consuming component in the line is the ballast. The traditional inductive ballast is replaced by an energy-saving electronic ballast due to the large eddy current loss of the winding and the core, which accounts for the power consumption of the lamp.
Different types of electronic ballasts can be selected depending on the place of use, the cost of the price, and the needs of different grades of lighting products. At present, the export of electronic ballasts in China has increased year by year, and its composition is mainly based on traditional power frequency magnetic ballasts, and the transition to high-frequency electronic ballasts, especially the joint ventures of Shanghai Philips and other high-grade products. The higher price and larger quantity are all exported to the United States to promote the development of China's high-end electronic ballast production and export. At present, most of China's integrated compact fluorescent lamps use electronic ballasts. Straight tube and ring type fluorescent lamps are also increasingly used to form lighting lines with electronic ballasts. Straight tube type fluorescent lamps have developed electronic ballasts for simultaneous use of multiple lamps.
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LED DJ Display
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