How many watts is suitable for studying desk lamps?

The brightness of 25-45 watts incandescent lamp is the most suitable. ? At present, there is still a lack of conclusive scientific evidence about whether lamps have eye protection effect. If you want to protect your eyesight, the key is to learn to use the desk lamp correctly, not rely on eye protection lamps.

In the national "GB_50034-2004 Building Lighting Design Standard", the standard value of residential building lighting should be written and read, and the standard value of illumination should be 300lx, and the reading of color temperature of light source should be 3300-5300K；. Color rendering index ≥80.

Buying a study desk lamp depends not only on the wattage of the lamp, but also on its color temperature. The most common index of spectral quality of light source. Color temperature is defined as absolute black body. When the radiation of the light source is exactly the same as that of the absolute blackbody in the visible region, the temperature of the blackbody is called the color temperature of the light source. Low color temperature light source is characterized by energy distribution.

Table lamp has a great influence on people's vision health in the use process, which directly determines the deepening and slowing down of vision to a certain extent. Children must pay attention to prevent the damage of strong light to their eyesight when using their eyes, and stop studying and reading in too strong light in time. It is best to use 12W to 30W energy-saving lamps for home study lamps, and the color temperature is between 4000 K and 4500 K. ..