With the improvement of peoples living standards, in order to meet the various needs of peoples lighting, the scale of household lamps is also increasing.But there are potential dangers behind these wonderful light and shadow, have you noticed? For example, ...
How to use table lamps safely and correctly
With the improvement of peoples living standards, in order to meet the various needs of peoples lighting, the scale of household lamps is also increasing.But there are potential dangers behind these wonderful light and shadow. Have you noticed it? How to use table lamps safely and correctly? Let ’s take a look with the editor.China
Chinas AC power is 50Hz, which changes 50 times per second.Therefore, the direct use of AC electricity lights are flashing. The flash frequency is generally 100 times/second. It is double the frequency of the grid, that is, 100 times per second.
The changes that the human eyes can perceive is less than 30Hz, and the light changes of 100 times per second (from light to dark, then from darkness, ...) Although it will not be perceived by us, some studies have said that these changes (flashing (flashing (flashing (flashing (flashingMovement) For human eyes, it will have a role.
For example, strong light acts on human eyes, the pupils in the eyes will shrink; for the weak light, the pupils will magnify.
Therefore, the electric light that directly applies AC electricity will hurt the eyes (refers to students who often read books with electric lights).Some people invented high -frequency lights, which changed tens of thousands of times per second. Because peoples eyes were too late to change at all, they could not feel the change at all, so it can be said to be "unchanged" to achieve the purpose of eye protection.Transform the ordinary 50Hz AC electricity into high -frequency AC power and use electronic frequency conversion.That is, in high -frequency lights, first turn 50Hz AC electricity into high -frequency AC power, and then use high -frequency AC electricity lights.
However, high -frequency electromagnetic radiation will also increase, that is, the electromagnetic radiation of high -frequency lights is greater than the electromagnetic radiation of ordinary incandescent lamps and fluorescent lamps, and it may also cause another damage.In addition, high frequency flash does not mean not flashing.
(1) Warning: 1. Use flammable items such as Chinese paper, cloth, etc. Do not approach the lamp (avoid causing fires) 2. When installing or wiping the lamp, please cut off the power (avoid electric shock)
(2) Note: 1. Please use the specified power tube (avoid shortening the life of the lamp tube) 2. Please confirm whether to insert the lamp head seat when installing the lamp (avoid falling injuries) 3. Please do not collide with the tube to avoid avoidInjury (avoid damage and injury) 4. Please do not touch the lamp tube after use or extinguish the lamp (avoid burns) 5. Please do not use too high humidity or high temperature places.
(3) Precautions: 1. Use at low temperature. It takes a while to light up the lamp, and the light will flash when lighting. This situation is normal.2. When the lamp is used, there are black or small spots near the top of the electrode, which is normal.
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