health
★ Enjoy modern lighting to avoid the impact of poor lighting on human health. Experts suggest that when indoor lighting must be used, the five principles of lighting should be grasped:
1, using a wide range of lighting, the light should shine on the entire desktop;
2, using uniform lighting, the illumination of each part must be consistent;
3, to maintain a stable lighting, the light source should not be bright or flashing when it is dark;
4. Maintain adequate lighting;
5. Finally, be careful not to let the light shine directly into your eyes.
★ There should be common sense of healthy lighting when using lamps: for example, the best illumination for reading has a lot to do with age, and the illumination required by the elderly is 15 times that of children.
★ Why does the high frequency eye protection lamp have electromagnetic radiation:
In order to overcome the stroboscopic frequency of the 50hz fluorescent lamp, the high-frequency eye-protection lamp will inevitably bring electromagnetic radiation of the high-frequency power source by using a frequency of 40,000 to 55,000 hz. Environmental experts point out that excessive electromagnetic radiation may cause heart palpitations, insomnia, leukopenia, memory loss, and even reduce immune function, damage to the blood system and nervous system.
Electromagnetic radiation damage is cumulative, the closer the distance, the lighter the weight, the greater the damage. It is a consensus to have one more protection and one less risk.
★ Led is a kind of semiconductor solid-state light-emitting device: it has the advantages of small volume, light weight, high brightness, low energy consumption, long life, high safety, high color purity, good directionality, low maintenance cost, environmental protection and no pollution.
★ Led lighting is a kind of green light source: low working voltage, low power consumption; stable performance, long life (generally 100,000 hours); strong impact resistance and vibration resistance; LED lighting products can provide high quality light environment and enhance The light effect of the illumination system, no infrared and ultraviolet components, high color rendering and strong directionality of light; good dimming performance, no visual error when color temperature changes; cold light source has low heat and can be safely touched; Improve glare, reduce and eliminate light pollution. Zero strobe will not cause fatigue in the eyes. No electromagnetic radiation, to prevent radiation pollution to protect the brain. It not only provides comfortable lighting space, but also satisfies people's physiological health needs. It is an environmentally friendly and healthy light source. Long-term use can protect your vision and prevent myopia. Disadvantages: 1, the price is expensive. 2. There is still a big gap between the light efficiency and the theoretical light efficiency that can be generally achieved. 3, there is still a big gap between the current life expectancy and the theoretical life (10w hours). 4, there is still a certain amount of heat. 5, light decay can also be greatly reduced.
high quality
★ High quality light source is the basis of green lighting. High-quality light sources should have the following three characteristics.
First, there should be no ultraviolet light or infrared light in the spectral composition. Excessive exposure to ultraviolet light for a long time is not only easy to cause keratitis, but also causes damage to the lens, retina, choroid, and the like. Infrared rays are easily absorbed by water, and too much infrared light is absorbed in a large amount when the lens of the human eye is concentrated. Over time, the lens will be denatured, resulting in cataracts.
Second, 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 and good visual effects.
Third, the light is no-frequency flash. The normal fluorescent lamp has a power supply frequency of 50 Hz, which means that the light is emitted 100 times per second when it emits light. It belongs to the low-frequency stroboscopic light, which causes the human eye's regulating organ to be in a state of tension regulation, resulting in visual fatigue. If the frequency of illumination increases to hundreds or more tens of thousands of Hertz - become a high frequency, the human eye will not have a stroboscopic feeling; but the real stroboscopic is a DC-powered or semiconductor solid-state light-emitting device (such as a LED light-emitting diode). The light emitted is called a no-strobe flash.
★ There are many eye protection desk lamps on the market called strobe-free. Most desk lamps work with electronic ballasts to increase the frequency. They can only be called high frequency flashes instead of true strobe lights.
★DC eye-protection lamp, the new mileage cup in the history of table lamp, by turning the AC power into DC power, using DC light, DC power supply, it will not flash at all. When used, the light is close to natural light, very bright, but not dazzling. Achieve true stroboscopic, no radiation.
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