What kind of light is healthy light, how to buy Lamps and lanterns?

Now most lamps and lanterns use LED light source, LED is a kind of light-emitting diode, is a semiconductor material. LED light source is a kind of point light source. So LED lamps and lanterns will generally add lampshade to avoid glare. Seeing too much, I feel uncomfortable and dazzling. This is because the glare problem of lamps and lanterns is not handled well. LED lamps are usually optically treated with lens. In the design of lamps and lanterns, the arrangement and position of lamp beads will be considered. In addition, there will be corresponding optical design in lamps and lanterns, which can be processed by adding some lenses, shading plates and soft light plates in lamps and lanterns, so as to make the light appear soft. If you care about glare, you can buy some deep anti glare lamps. Anti glare effect is better. Too much blue light can cause discomfort to the eyes. So do not choose LED lamps with too high color temperature, the blue light component may be relatively more. Of course, if the lamps meet the test standard, such as the anti blue light level RG0, they can be used boldly. The illuminance and uniformity of light should also meet the requirements of lighting. Color temperature of light: generally, the higher the color temperature, the colder the tone, and the lower the color temperature, the warmer the tone. For example, the color temperature of candle is about 2800k, and that of daylight is about 4000-5000k. Generally speaking, it is suggested that the living room use about 4000K color temperature, so the light appears bright and generous, and the bedroom can choose about 3000-3500k color temperature, so it will be warm. And because the kitchen needs more careful work, usually choose higher color temperature products, such as 4000-5000k color temperature. In addition, everyone's preferences for color temperature are different, and they can choose according to their own preferences. Due to different application scenarios in the same place, for example, in the living room, if you are meeting guests, you can use the color temperature of about 4000K to appear bright and generous. If you are chatting with friends, you can choose the color temperature of about 3000-3500k to present warm light, which is more conducive to communication. So you can choose the lamp that can adjust color and temperature. It should be noted that the color temperature and illumination of lamps should be matched to a certain extent. If they do not match, it will cause discomfort. If the illumination brightness is too high and the color temperature is too low, it will feel unnatural and uncomfortable. The so-called stroboscopic is that when we see the light string outside, the flickering is a serious stroboscopic. Generally, it is required that there is no video flash for lighting lamps. Strict testing requires professional tools, and it is generally required that the naked eye cannot detect it.