Recently, the State Administration for Market Regulation (Standardization Administration of China) officially approved and issued the mandatory national standard "Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary Schools" (GB 7793—2025). This standard was organized and revised by the National Disease Control and Prevention Administration and will be fully implemented starting November 1, 2026, aiming to further protect children and adolescents' visual health by clarifying hygiene requirements for classroom daylighting and lighting.
Basic Information Overview
ItemGB 7793-2025Old Version GB 7793-2010TitleHygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary SchoolsChina Science and Technology Network+3codeofchina.com+3National Standard Information Public Service Platform+3Same title (Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary Schools)codeofchina.com+1Publication / ImplementationPublication: 2025-10-05; Implementation: 2026-11-01China Science and Technology Network+3National Standard Information Public Service Platform+3codeofchina.com+3Publication: 2011-01-14; Implementation: 2011-05-01codeofchina.comClassification / Replacement RelationshipIt is a mandatory national standard; willfully replace GB 7793-2010 codeofchina.com+3 National Standard Information Public Service Platform+3 China Science and Technology Network+3Within its validity period, it was a mandatory national standard, later replaced by the 2025 versionNational Standard Information Public Service Platform+1Revision / New Key PointsThe new version makes changes in three aspects: "more comprehensive," "more scientific," and "more optimized"China Science and Technology Network+1The old version was based on earlier technical levels and indicators, and some content may no longer be suitable for the development of modern classroom daylighting and lightingcodeofchina.com+1
New Version vs Old Version: Main Changes and Enhancements
According to standard publication, media reports, and standard drafting notes, the new versionGB 7793-2025has undergone relatively major or systematic revisions in multiple aspects. The following are some key changes and impacts:
Change / New PointDescriptionSignificance / ImpactMore Comprehensive IndicatorsMultiple key indicators added: daylighting uniformity, full-window sunlight duration on the winter solstice, glass color transmission index, visible light transmittance, control devices for blackboard lighting luminaires, retinal blue light hazard limit, fluctuation depth, flicker index, stroboscopic effect visibility, etc.China Science and Technology Network+1These may not have been explicitly specified or were only weakly required in the old standard. The new standard pays more attention to light environment quality, visual health, light stability, etc.Updates to scope of application and technical boundariesThe scope of application of the standard was revised, and improvements and adjustments were made to daylighting direction, daylight factor, window-to-floor area ratio, glare control, reflectance of various classroom surfaces, lighting color temperature and color rendering index, lighting power density, measurement methods, etc.China Science and Technology Network+1This makes the standard more aligned with modern architectural design, the actual construction of school classrooms, and the development of luminaire technology, etc.Relaxation or removal of outdated requirementsRestrictions on specific luminaire types such as "three-primary-color fluorescent lamps, energy-saving inductive or electronic ballasts must be used" were deleted, leaving room for technological progress and flexibility of choiceChina Science and Technology Network+1The old version may have been relatively rigid regarding luminaire types, while the new version is more inclusive of modern lighting technologies (LED, hybrid light sources, etc.)Greater emphasis on visual health and light stabilityRequirements or limits were set for indicators such as fluctuation depth, flicker, stroboscopic visibility, and blue light hazardChina Science and Technology Network+1This is the part that was weak or not covered in the old standard. The new standard places greater emphasis on the impact of long-term use on students' visual health.Improvement of measurement / control devices / implementation detailsMore explicit requirements in measurement methods, luminaire control devices (such as blackboard lighting control), etc.China Science and Technology Network+1More detailed operational guidance for actual engineering, acceptance, and supervision, which is conducive to the implementability of the standard.
Comparative summary: advantages of the new version and limitations of the old version
- Advantages / Strengthened points of the new version
- Limitations / Disadvantages of the old version
Implementation and transition recommendations & precautions
- Transition period preparation
Although the new version of the standard will not be officially implemented until November 2026National Standards Information Public Service Platform+1, before then, schools, design institutes, luminaire manufacturers, etc. should begin updating and evaluating against the new version of the standard. - Difference inventory / gap analysis
In upgrade or new construction projects, existing designs / luminaires / control systems should be checked against the new indicators added in the new version of the standard to identify what does not comply (such as whether flicker, illuminance uniformity, control devices, reflectance, etc. are considered). - Technology and equipment selection
When selecting luminaires / controllers / window light systems / glass materials, priority should be given to products that can support the indicators of the new version of the standard (such as low flicker, dimmability, good light color parameters, good control device responsiveness, etc.). - Monitoring and verification
Monitoring and acceptance procedures should be developed in accordance with the measurement methods, testing instruments, and acceptance methods specified in the new version of the standard to ensure that the actual classroom lighting environment can meet the standard. - Regulatory / enforcement considerations
After the new standard is published, it is a national mandatory standard, and once implemented, all primary and secondary schools and related buildings must comply. If a project does not comply with the new standard after implementation, it may face problems in acceptance or supervision. - Education / publicity / standard training
During the standard upgrade process, training and standard interpretation for designers, construction units, school maintenance personnel, etc. are very important to ensure consistency and effectiveness in the implementation of the standard.