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"China Building Materials Network" is divided according to the light source. There are four kinds of lamps that are more common in ordinary life: incandescent lamps, energy-saving lamps, metal halide lamps and LED lamps (light-emitting diodes).
Energy-saving lamps are popular for energy saving, and a 9-watt energy-saving lamp is equivalent to a 40-watt incandescent lamp. The life of energy-saving lamps is also relatively long, generally 8,000-10,000 hours. The color rendering of energy-saving lamps is around 80, and some products can reach more than 85, and the color rendering is also relatively high. The illumination range of energy-saving lamps ranges from 2700K to 6500K, so energy-saving lamps are available in both yellow and white light colors. The average person feels that the yellow light is warmer and the white light is colder. Now many five-star hotels like to use the yellow warm light energy-saving lamps, and the effect is also very good. High-quality energy-saving lamps use true trichromatic rare earth phosphors to ensure long life while maintaining high brightness. After a period of normal use of the energy-saving lamp, the lamp will become dark, mainly because of the loss of the phosphor, which is technically called light decay. Some high-quality energy-saving lamps have invented the constant-light technology, which can keep the lamp in the best working condition for a long time. After 2000 hours, the light decay is less than 10.
The biggest disadvantage of incandescent lamps is their short life. The use time is usually between 3000-4000 hours. Some incandescent lamps with poor quality can only be used for 1500 hours. However, incandescent lamps have a high degree of coloration and can reach 100, which means that the object can be completely displayed. The incandescent lamp has an illumination of between 2700K and 2800K, and the color is softer. According to the characteristics, incandescent lamps in the home are often used in restaurants, bedrooms and other spaces, and look more comfortable.
LED lights are known as light-emitting diodes and are new technologies. The white LED lamps on the market are better in performance, but the current LED lamps still need to be perfected in technology. First, the light effect is relatively low, and second, the color will be missing. In the seven bands of red, orange, yellow, green, cyan, blue, and purple, the blue and green bands of the LED light are relatively small, so when the color of the object is displayed, There are missing, experts predict that if LED lights can solve these two problems well, it is possible to replace other lights in the future, because in theory, the life of LED lights is unlimited.
The metal halide lamp is actually a kind of incandescent lamp, and its life is not very long, generally between 3000-4000 hours, and will not exceed 6000 hours. The metal halide lamp has an illumination of between 2700K and 3250K. This kind of lamp can be used for accent lighting, for example, to highlight the decorative painting on the wall, the interior decoration, etc., can be illuminated with a cold light cup, which can be changed according to different home decoration styles, consistent with fashion.