Regarding the knowledge of indoor lighting, in people's daily life, indoor lighting is the most common in our lives, so, what knowledge about indoor knowledge?
1. Incandescent lamp
The biggest shortcoming of incandescent lamps is their short life span. The use time is generally between 3000 and 4000 hours. Some incandescent lamps of poor quality can only be used for 1500 hours. Incandescent lamps in homes are often used in spaces such as dining rooms and bedrooms, and they look more comfortable in color.

2. Energy-saving lamps
Energy-saving lamps are popular because of their energy saving. 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 8000 to 10000 hours. After a period of normal use of energy-saving lamps, the lamp will dim, mainly because of the loss of phosphor, which is technically called light decay. Some high-quality energy-saving lamps have invented constant-brightness technology, which can keep the lamp in the best working condition for a long time. After 2000 hours of use, the light decay is less than 10%.

3. Metal halide lamp
The metal halide lamp is actually a kind of incandescent lamp, and the life span is generally between 3000 and 4000 hours, not more than 6000 hours. This kind of lamp can be used for accent lighting. For example, in order to highlight the decorative paintings on the wall, indoor decorations, etc., it can be illuminated with cold light cups. The white light of the lamp can be changed according to different home decoration styles, and it is consistent with fashion.

4. LED lights
The scientific name of this kind of lamp is light-emitting diode, which is a new technology. The white LED lights on the market now have better performance, but the current LED lights still need to be improved technically. One is that the light efficiency is relatively low, and the other is that the color will be missing. In the 7 bands of red, orange, yellow, green, cyan, blue, and purple, the blue and green bands of the LED light are relatively small, so it will be displayed when the color of things is displayed. There are shortcomings. Experts predict that if LED lights can solve these two problems well, they may replace other lights in the future, because in theory, the lifespan of LED lights is unlimited.
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