Tips for choosing a good LED downlight

　　 Everyone knows that our daily life cannot be separated from lamps and lanterns for us to illuminate, but everybody will have their own preferences when choosing lamps and lanterns. For example, some people are accustomed to using LED lights. Today, the main thing we bring is the skill of choosing good LED downlights.
　　 Technique 1. Look at the "spot"
　　The light spot is the shape of the LED downlight projected on the plane, and it is the primary standard line for judging the light quality of the luminaire. The excellent light spot can directly improve the visual texture of the object, and the extended light is more natural. Different types of light spots, different angles of illumination effects. A good spot has clear focus, uniform imaging, natural diffusion of peripheral light, and no stray light and dark spots.
　　 Technique two, watch "anti-glare"
　　 Glare is also called "light noise", which refers to unwanted glare interference light. The "glare" leaking from the lamp cup will directly affect people's visual comfort. The design defects of the luminaire cause the light source to be directly seen by the naked eye when in use, which is the reason for the glare of the downlight under normal circumstances. Therefore, the design of the reflector, lens, and hood is often used to avoid the glare.
　　 Technique three, look at the "display finger"
The color rendering index is the abbreviation of color rendering index. It is an index to evaluate the faithful color rendering ability of the measured light source relative to the reference light source. It is based on the reference or reference light source with the same color temperature (5000K or less is the same color temperature black body radiator, 5000K or more It is a comparison of the degree of coincidence of the appearance color of the object under the CIE daylight model of the same color temperature. According to the degree of coincidence, the highest value is 100.
　　 Technique four, look at the color temperature
　　 Color temperature is also an important parameter to evaluate the light output of lamps, which is expressed in Kelvin temperature K value. Cold and warm are usually used to describe the feeling of different color temperatures. The higher the color temperature, the colder it feels, and the lower the color temperature, the warmer it is. Color temperature is a subjective indicator, that is, there is no absolute good or bad, right or wrong, the key depends on the applicability of use in different occasions, as well as the "accuracy" of the color temperature, whether there are errors, etc.
　　 For the skills of selecting a good LED downlight, this article summarizes a total of four points. One is to look at the "spot", which is the primary standard for judging the quality of the light emitted by the lamps. The second is to look at "anti-glare", which refers to unnecessary and unneeded glare interference light. The third is to look at "CRI", which is the abbreviation for color rendering index. The fourth is to look at the color temperature.