Three aspects to choose high-quality LED lamps
LED panel light: In order to allow everyone to choose satisfactory products, today I will teach you to choose high-quality LED lamps from three aspects.
First, the lights should be frequencyless flashes. The power supply frequency of ordinary fluorescent lamps is roughly 50 Hz, and this means that it lights up and dims 100 times per second when it emits light, so it is a low-frequency stroboscopic flash, and at the same time, it will also make the adjustment organs of the eyes in a state of tension, which is easy to cause. visual fatigue. If the frequency of light emission can be increased to a high frequency of hundreds or tens of thousands of hertz, then the human eye will not have the feeling of stroboscopic; however, the real flicker-free is DC power supply or semiconductor solid-state light-emitting devices (such as LED light-emitting devices). The light emitted by LED) is also called stroboscopic flash, so consumers must pay special attention to this when purchasing LED lights.
Second, there are no ultraviolet and infrared light in the spectral composition of LED lights. Excessive exposure to ultraviolet rays for a long time will not only easily cause keratitis, but also cause damage to the lens, retina, choroid, etc. Infrared rays are also easily absorbed by water, and too much infrared rays will be absorbed in large amounts when they are gathered by the human eye lens. Over time, the lens will degenerate and cause cataracts.
Third, the color temperature of LED lamps must be close to natural light. Because people live under natural light for a long time, the human eye is very adaptable to natural light and has good visual effects. Because there are many color temperatures of LED lights, including positive white light, cool white light, warm light, etc., consumers must pay attention to choosing a light color temperature that is suitable for them and looks the most comfortable when purchasing, so that it will not be harmful to the eyes. cause some damages.
