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Research has shown that when the illuminance is within the range of 10-1000lx, the higher the illuminance, the smaller the visual fatigue. The illuminance of 200lx is a turning point for the speed of visual function changes. According to regulations in China, the average illumination level of classroom lighting should not be less than 300lx on the desk, and the uniformity of illumination should not be less than 0.7. The average illumination of the blackboard should not be less than 500lx, and the uniformity of illumination should not be less than 0.8.
When choosing classroom lighting fixtures, it is recommended to use a light source with a color temperature of 3300K-5500K, and the color rendering index of the light source should not be less than 80. This type of classroom lighting fixture can provide sufficient lighting for teachers and students, while also reducing eye damage.
The overall illumination of many classrooms is low, and the illumination of desks is generally insufficient, far below the national standard illumination requirements; The lamp does not have a reflector, the light source is clearly exposed, and there is glare that can easily damage the eyes; Poor uniformity of blackboard illumination and low resolution; Unreasonable lighting layout and high overall energy consumption; The color rendering index does not meet the requirements of national standards.
Experts have pointed out that there are many reasons for students' low vision, such as congenital factors, incorrect sitting posture, heavy learning burden, long time watching TV or operating computers, etc. However, there is also a very important factor: unhealthy and substandard classroom lighting environment!
The State Administration for Market Regulation and the National Standardization Administration have approved the release of the "Hygienic Requirements for the Design and Installation of Lighting in Ordinary Classrooms in Primary and Secondary Schools" (GB/T36876-2018), which provides detailed regulations on the illumination of desktop and blackboard surfaces, as well as the design and installation hygiene requirements for ordinary classrooms in primary and secondary schools:
1. Hygienic requirements for classroom desktop and blackboard surface illumination
Maintain an average illuminance of not less than 300lx and an illuminance uniformity of not less than 0.7; The average illumination on the blackboard surface shall not be less than 500lx, and the uniformity of illumination shall not be less than 0.8.
2. Hygienic requirements for classroom lighting design and installation
Suspended grille lamps should be used, and the efficiency of the lamps should not be less than 60%; The unified glare value (UGR) should not be greater than 19; It is recommended to use a color temperature of 3300K-5300K and a color rendering index of no less than 80.
3. Hygienic requirements for the design and installation of blackboard lighting
Using specialized blackboard lamps with asymmetric light intensity distribution characteristics, the lamp efficiency should not be less than 75%; The light source is the same as the classroom lighting requirements.
Eye friendly and healthy classroom lighting can effectively reduce students' visual fatigue and prevent myopia! Classroom eye protection lamp brand recommends that all primary and secondary schools and institutions (including public school classroom lighting, private school classroom lighting, private school classroom lighting, laboratory school classroom lighting, educational institutions, etc.) choose "Huahui Lighting"!
As a promoter of campus lighting and health, Huahui Lighting is one of the first units in South China to meet the standards for high-quality lighting environment in classrooms. It strictly controls color temperature, glare, blue light, illuminance, and other issues in educational lighting to avoid harmful lighting to visual health, reduce visual fatigue, and effectively prevent myopia!
Huahui Lighting has designed specialized lighting fixtures for classroom lighting - LED eye protection classroom lights and LED eye protection blackboard lights, which comply with national standards and maintain an average (constant) illumination of more than 300lx for desks, with an illumination uniformity of 0.7; The blackboard maintains an average (constant) illumination of 500lx and an illumination uniformity of 0.8; If the color rendering index is greater than 90, the color reproduction is high; Adopting grille anti glare design, with a glare value less than 16, not dazzling; The color temperature is 5000K, comfortable and soft; The entire classroom has uniform illumination and no flickering!
Use Huahui LED eye protection classroom lights and LED eye protection blackboard lights, and can also be paired with Huahui Lighting AIoT intelligent education lighting overall solution. Through self-developed intelligent lighting products equipped with self-developed intelligent boxes, use intelligent control panels or mobile apps to easily switch lighting modes that meet teaching needs, achieving intelligent requirements such as constant illumination throughout the classroom, one click scene control, curtain linkage, and UV sterilization!
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