1、 The problem of myopia among students is severe
According to the National Visual Health survey, the first systematic study on visual health in China, the proportion of myopic individuals aged 5 and above ranges from 35.16% to 39.21%, meaning that one in every three people is myopic. The total number of myopic patients is between 437 million and 487 million.

A survey shows that about 60% of primary and secondary school students in China spend their time in the classroom every day. When the lighting and illumination conditions in the classroom are insufficient or too dim, students will instinctively approach books. Over time, this will naturally cause changes in the refractive system of the eyes, leading to myopia.

In the experiment of the National Natural Science Foundation project "Research on Classroom Health Lighting Based on Photobiological Effects", it is more scientifically demonstrated that classroom lighting in schools will directly affect students' learning efficiency and visual health.

2、 Six major deficiencies in classroom lighting environment
1. Using bare light fixtures, direct sunlight can cause severe glare in the eyes of students and teachers, leading to excessive tension in the eye muscles, which can easily distract students' attention and reduce learning efficiency.

2. The illumination is lower than the national standard, and the use of non professional classroom lighting fixtures and insufficient use of lighting fixtures make students study in low light environments for a long time, which can easily cause visual fatigue.

3. The uniformity is lower than the national standard, and non professional classroom lights and improperly distributed blackboard lights are used, resulting in low uniformity of classroom desks and blackboard surfaces.

4. Improper color temperature selection, using warm or cool color temperature lamps, not suitable for classroom use, can easily cause visual fatigue among students.

5. The lamp position is unreasonable, the installation height of the lamps is unreasonable, and the installation position of the lamps is unreasonable.

6. Improper positioning of the fan, with the large blade fan placed under the lighting fixture, causes flickering when the fan rotates, affecting students' visual health.

3、 Six major missing solutions
1. Choose professional classroom lighting fixtures with high luminous efficiency, high color rendering, no blue light hazard, no flicker, and professional lighting distribution to ensure a uniform, bright, and reasonable lighting environment.

2. Use blackboard specific lights and allocate them reasonably to ensure sufficient illumination and even lighting on the blackboard surface.

3. Choose a suitable color temperature and use a light source with a color temperature of 3300K-5500K to create a comfortable classroom lighting atmosphere.

4. Reasonably arrange classroom lights in the same direction, with neat and symmetrical layout, simple installation, and sufficient and uniform illumination on the classroom table.

5. Reasonably install blackboard lights, position them appropriately, and ensure even lighting on the blackboard surface.

6. Use a small blade fan placed in the middle of the lamp to avoid flickering caused by the fan.

4、 Six key points to ensure a good classroom lighting environment
1. Choose a color temperature that is close to natural light. A color temperature of around 5000K is quite close to natural light, which helps stabilize emotions and improve learning efficiency.

2. A good color rendering index is required, and the degree to which a light source presents the color of an object is called color rendering. A high color rendering index is beneficial for improving students' ability to recognize colors. Poor quality fluorescent lamps and LED light sources have a color rendering index of around 70, which means a loss of about 30% of the original color of the object. Moreover, their color rendering ability for saturated red (R9) is generally low, even negative. Long term learning in such a classroom lighting environment will inevitably lead to a decline and deterioration of color discrimination ability, resulting in color weakness and poor color discrimination ability.

3. No flicker hazard, driving device, no flicker, no noise. Comfortable to use, effectively preventing myopia.

4. No visible glare, use the protective angle of the lamp to block glare, increase the protective angle of the lamp to control glare, this method does not affect the efficiency of the lamp. UGR＜16， No visible glare, no eye damage, better than the national standard.

5. Good uniformity of illumination. If there is a large difference in brightness and darkness in the workplace environment, the eyes will try to adapt to the change when moving from one surface to another. This adaptation process can cause visual fatigue, and frequent exposure to this adaptation process can seriously lead to a decline in eye vision. Therefore, good classroom lighting in schools requires even distribution of illumination, especially for desktop illumination and blackboard illumination, which should be as consistent as possible.

6. Reasonable lighting output method, using lighting fixtures that emit light from above and below, reducing the contrast between the ceiling and desks, creating a comfortable lighting environment, and making the space look wider.