It is very important to choose the color temperature of the desk lamp
For the reading and writing desk lamps advertised as “eye protection”, in the comparative test, over 80% of the reading and writing desk lamps have high color temperature, which affects the health of eyesight. The report pointed out: According to relevant standards, the relevant color temperature of reading and writing desk lamps should not exceed 4000K (±15%). If the color temperature is too high, it will affect the comfort, and if it exceeds 6500K, it may cause damage to the eyesight.
The pupil of the human eye shrinks or expands to adapt to changes in light. When the surrounding light changes from bright to dark, the pupil will dilate to get more light; on the contrary, when the surrounding light changes from dark to bright, the pupil will shrink, reducing the entry of light. When the light of the desk lamp is uneven, the light in the reading area will be too bright in some areas and too dark in some areas. At this time, the pupil of the human eye will continue to shrink and enlarge during the process of reading, which will cause eye fatigue and affect vision. healthy!
Therefore, when purchasing a qualified table lamp, the uniformity of color temperature and illuminance is the key: the color temperature of the table lamp should not exceed 4000K (±15%), and the uniformity of illuminance (maximum/minimum) should be less than 3!
Post time: Apr-11-2022