What is the difference between LED eye-protection lamp and ordinary desk lamp?
Time
2019-09-19 13:48
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Although a lot of students are right now eye protecting lamp is more favour, but still have the student of majority still using common desk lamp to learn, eye protecting lamp and common desk lamp what is the difference to have? Basically understand a few student things knowledge more, can understand the distinction of two of them more deeply, the student had better use eye protection lamp when studying, just can protect his eyesight very well.
Ordinary desk lamp works normally under the alternating current state of 50 Hertz, every second can produce flicker 100 times or so, so high flicker frequency, light depends on the human eye is unable to see. Accordingly, below desk lamp time is long, plus do not notice to use eye sanitation, produce myopia extremely easily. The principle of most eye-protective lamps is to increase the electric frequency of 50 Hertz to 40, 000 to 55, 000 Hertz, and the corresponding lamp flicker frequency per second will be greatly reduced, some can even drop to zero, thus protecting the eyesight function.
The characteristic that protects an eye desk lamp
(1) white light similar to natural light, stable brightness, no flickering, will not cause eye fatigue.
(2) large luminous area, not easy to produce glare and large area shadow harmful to vision.
(3) instantaneous bright spot, quiet and noiseless after lighting.
(4) compared with ordinary incandescent lamp, it can save 80% of power, and the average life span of the tube can reach over 6000 hours.
When a lot of parents are buying to the child eye protecting lamp now, do not know how to choose, how to choose student eye protecting lamp? It became a problem for them. The brand that protects eye lamp on the market is more, price difference is bigger also. When choosing eye lamp, want to notice to use a function actually, read the energy saving lamp that can choose 15W ~ 18W commonly, choose the high frequency lamp with higher frequency and contain the electron circuit that eliminate electromagnetism radiate, do not be misled by the product place of a few one-sided propaganda brightness.
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What is the difference between LED eye-protection lamp and ordinary desk lamp?
2019-09-19
Although a lot of students are right now eye protecting lamp is more favour, but still have the student of majority still using common desk lamp to learn, eye protecting lamp and common desk lamp what is the difference to have? Basically understand a few student things knowledge more, can understand the distinction of two of them more deeply, the student had better use eye protection lamp when studying, just can protect his eyesight very well.
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