Pay attention to such LED lights
In modern times, there are more and more children with myopia. In order to prevent children from being damaged when writing homework at home, many parents have specially prepared LED table lamps. But have you ever thought that the LED lights you bought are really safe?
If you accidentally buy a poor quality LED light, it is unfortunate.
Parents believe that the use of LED bulbs is more energy efficient and environmentally friendly. More importantly, the lighting effect is much higher than that of ordinary incandescent lamps, which helps protect children's eyes.
In fact, some inferior LED lights have serious stroboscopic light. Learning under such lighting for a long time will cause visual fatigue, headache, and even cause photosensitive epilepsy, leading to decreased vision and distraction. Not good for your child's health.
Different LED lights.
Simply speaking, when looking at the screen of another appliance in the screen of another appliance, the screen of another appliance will have a bright line moving from the bottom of the screen to the top and from the bottom. This infinity, giving us the feeling that the image is flashing.
The lower the strobe, the less damage to the eye. But no stroboscopic is actually impossible, and it can only be seen if it is too high.
In the experiment, two LED lamps with almost the same appearance, under professional test instruments, the stroboscopic degree is different.
The LED lights with such a disparity in stroboscopic appearance are almost indistinguishable to the naked eye. So in daily life, is there any way to distinguish it?
When picking up an LED light bulb, just take out the mobile phone that you carry with you, turn on the camera function, and use the lens to align the lighted light bulb, and you can separate it at a glance.
Light bulbs with low stroboscopic light are not much different under the lens from the naked eye.
Frequently flashing light bulbs, frequently fluctuating lines appear on the screen of the phone.
A qualified LED bulb is internally equipped with a constant current chip, which can effectively reduce the stroboscopic light, which is also the key to determine its quality. Generally, the price of a bulb with a constant current chip will be relatively high.
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