The business scope of Shenzhen Youmei Intelligent Technology Co., Ltd. includes technology research and development of intelligent technology products, electronic products and computer software and hardware. The business scope includes wilit table lamps, LED lighting appliances, safety lamps, air conditioning equipment, discharge tubes for lighting, lighting appliances and devices, ceiling lamps, lampshades, light-emitting tubes for lighting, and portable heaters.
Use of desk lamp
The degree of light bulb should be appropriate. If the degree is too low and the light in the book is dim, it will be difficult for us to read the handwriting clearly, which will cause visual fatigue and myopia for a long time. By then, treating myopia will become a daily necessity.
If the light bulb is too high, too strong light will be reflected into our eyes through the white paper, causing glare and shrinking the pupil, which will cause eye pain and headache. Generally speaking, the brightness of incandescent lamps of 25 watts to 45 watts is the most suitable.
The height of the desk lamp is also very important. Usually when the eyes are 30 cm away from the book, not only can you not see the handwriting clearly, but you will also be tired. Based on this calculation, the height of the desk lamp is 40 to 50 cm away from writing, which not only ensures sufficient reading illumination, but also has a certain brightness in the surrounding environment.