There are many causes of myopia, mainly including two kinds: genetic factors and non genetic factors. In addition, among non genetic factors, such as improper sitting posture, heavy learning burden, long time watching electronic devices such as mobile phones, etc., but according to the survey of the national CDC, poor classroom lighting environment is one of the main reasons for students' vision loss.

How can you make healthy eyes not myopia? The focus is on prevention. Improper eye use is the main cause of students' myopia. Classroom lighting plays an important role in myopia prevention and control. Classroom lighting meets national standards and has become a new battlefield for myopia prevention and control in schools!

The State Administration of market supervision and the State Standardization Administration approved and issued the hygienic requirements for lighting design and installation of ordinary classrooms in primary and secondary schools (GB / t36876-2018). In this new standard, the specific parameters of classroom lighting lamps, the overall illuminance of classrooms and the hygienic requirements for design and installation of primary and secondary schools are specified in detail:

1. Hanging grid lamps should be used, and the efficiency of lamps should not be less than 60%.

2. The uniform light value (UGR) of lamps shall not be greater than 19, and the calculation method of uniform glare value (UGR) shall be implemented according to cie117.

3. The color temperature of lamps should be 3300K ~ 5500k, and the color rendering index should not be less than 80.

4. The average illumination of the classroom desktop shall not be less than 300lx, and the illumination uniformity shall not be less than 0.7; The average illuminance on the blackboard surface shall not be less than 500lx, and the illuminance uniformity shall not be less than 0.8.

5. The lamps shall be installed with suspenders and evenly arranged according to the longitudinal direction of the classroom (the long axis of the lamps is perpendicular to the blackboard). The lighting power density of the classroom shall not be higher than 11W / ㎡, and it should be lower than 9W / ㎡ in conditional areas. The vertical distance (g) between the lamp and the desk shall not be less than 1700mm.

6. When calculating illuminance in lighting design, its maintenance coefficient shall be 0.8.

The school should create a high-quality lighting environment for students. It is recommended that all primary and secondary schools and institutions (including public school classroom lighting, private school classroom lighting, private school classroom lighting, experimental school classroom lighting, educational institutions), classroom lamp OEM and OEM choose the brand of "Huahui lighting"!

As a promoter of Campus Lighting health, Huahui lighting has been deeply engaged in the lighting industry for 27 years. It is the first batch of qualified units for high-quality lighting environment in classrooms in South China. It is also the "top ten educational lighting brands" in China's lighting industry in 2021. It strictly controls the color temperature, glare, blue light, illumination and other problems in educational lighting to avoid the harm of bad lighting to students' visual health!

Huahui lighting has designed special lighting fixtures for classroom - led eye protection classroom lamp and led eye protection blackboard lamp, which meet the national standard. The average (constant) illumination of the desk is greater than 300lx and the uniformity of illumination is 0.7; The blackboard maintains an average (constant) illumination of 500lx, and the illumination uniformity is 0.8; The color rendering index is greater than 90, and the color reduction is high; The grid anti glare design is adopted, and the glare value is less than 16, which is not dazzling; The color temperature is 5000K, comfortable and soft; The illumination of the whole classroom is uniform, without stroboscopic and blue light hazards.

Using Huahui led eye protection classroom lamp and led eye protection blackboard lamp can be combined with Huahui education lighting aiot intelligent education lighting overall solution. Through the self-developed intelligent lighting products, equipped with self-developed intelligent boxes (such as intelligent distribution box or intelligent air switch), the intelligent full touch screen scene switch, remote control or mobile phone app can easily switch the lighting mode that meets the needs of teaching, so as to realize constant illumination, one key scene control Curtain linkage, ultraviolet sterilization and other intelligent needs!