High Quality Desk Lamps

★ High quality light sources are the foundation of green lighting. High quality light sources should have the following three characteristics.
Firstly, there should be no ultraviolet or infrared light in the spectral components. Long term excessive exposure to ultraviolet radiation can not only cause keratitis, but also damage the lens, retina, choroid, and other structures. Infrared radiation is easily absorbed by water, and excessive infrared radiation is absorbed by the human eye lens when it accumulates. Over time, the lens undergoes degeneration, leading to cataracts.
Secondly, the color temperature of light should be close to natural light. People live in natural light for a long time, and the human eye has strong adaptability to natural light, resulting in good visual effects.
Thirdly, the lighting is a flicker without frequency. The power supply frequency of ordinary fluorescent lamps is 50 hertz, which means that they light up and dim 100 times per second when emitting light. This is a low-frequency flash that can put the human eye's regulatory organs in a tense state of adjustment, leading to visual fatigue. If the frequency of light emission is increased to hundreds or tens of thousands of hertz or higher - becoming a high frequency, the human eye will not have a flicker sensation; But true flicker free is the light emitted by DC powered or semiconductor solid-state light-emitting devices (such as LED), which is called flicker free.
★ There are many eye protection desk lamps on the market that are called flicker free. Most desk lamps work by using electronic ballasts to increase frequency, which can only be called high-frequency flicker rather than true flicker free desk lamps.
★ DC eye protection lamp, a new milestone in the history of desk lamps. By converting AC power into DC power and using DC power to light the lamp, it will not flash at all. When used, the light source is close to natural light, very bright, but not glaring at all. Achieve true flicker free and radiation free.