Although the initial investment in metal halide lamps is slightly more expensive and mercury lamps are the cheapest, the total operating cost of metal halide lamps and high-power energy-saving lamps is superior to mercury lamps. Taking one year and lighting for 12 hours a day, for example, in the case of achieving the same lighting effect, the metal halide lamp saves 45% more than the mercury lamp, and the energy-saving lamp saves 22% compared with the mercury lamp.
When it comes to lighting energy saving, energy-saving lamps seem to be the only words of people. More and more energy-saving light sources are being used in various ways.
According to Mr. Xu Zhiwei, senior engineer of Shanghai Baosteel Engineering Technology Co., Ltd., mercury lamps, high-power energy-saving lamps and metal halide lamps are currently three kinds of light sources commonly used in industrial lighting. Among them, the mercury lamp consumes a relatively large amount of electricity, followed by a high-power energy-saving lamp; the metal halide lamp consumes the least.
Xugong said that metal halide lamps and high-power energy-saving lamps are energy-saving products that replace mercury lamps. Since the mid-1990s, Baosteel's high-ceiling factory buildings have been replaced with Philips metal halide lamps. Metal halide lamps are energy-saving and suitable for high and low ceilings. High-power energy-saving lamps have a certain energy-saving effect, with less initial investment and convenient replacement, but only suitable for low-rise buildings.
Although the initial investment in metal halide lamps is slightly more expensive and mercury lamps are the cheapest, the total operating cost of metal halide lamps and high-power energy-saving lamps is superior to mercury lamps. Taking one year and lighting for 12 hours a day, for example, in the case of achieving the same lighting effect, the metal halide lamp saves 45% more than the mercury lamp, and the energy-saving lamp saves 22% compared with the mercury lamp.
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