How to place and adjust the table lamp in the study?
The color temperature can be simply understood as the temperature of the color. When the color temperature is around 3000K, it tends to be yellowish and a bit dim;For desk lamps that can adjust the color temperature, it is best to adjust the color temperature to within 4000K when used at night. Illuminance is the brightness of the light source shining on the table. If the illumination is too low or uneven, one piece will be bright and the other will be dark, which will easily lead to visual fatigue. GB/T 9473-2017 "Performance Requirements for Reading and Writing Work Desk Lamps" is divided into two grades of contrast: A level and AA level. The AA standard requires the light source to be a fan-shaped reading and writing area with a half-meter center, and the edge brightness should also be ≥ 250lx. • Reduce the light source level or slightly higher than the children's eyes, so that the light should not shine directly on the eyes as much as possible; • Turn down the b...