The new national standard GB7793-2025 Lighting and Lighting Standards for Primary and Secondary School Classrooms has been released. How should manufacturers upgrade their products?

2025-12-13 · News

Next, I will focus exclusively on "blackboard (chalkboard) luminaires" and explain clearly the additions and changes in GB 7793-2025 compared with GB 7793-2010.

Quick Answer

The core upgrade of GB 7793-2025 compared with GB 7793-2010 is: writing boards must use dedicated writing board lighting fixtures and should be equipped with independent control devices. At the same time, new health-related indicator requirements have been added, including illuminance uniformity, protection against direct and reflected glare, and flicker and blue light. The previous approach of using ordinary classroom lights to also cover blackboards has been eliminated.

Below Iwill focus exclusively on "writing board (blackboard) luminaires", and explainGB 7793-2025theGB 7793-2010compared withnew additions and changesclearly to you, suitable for product introductions, bidding explanations, or technical training.

Let me give you the conclusion in one sentence first

👉 2010 version: only requires "there is a blackboard light and it is bright enough"
👉 2025 version: explicitly proposes "dedicated writing board luminaires + independent control + health and anti-glare requirements"

This is an upgrade **from "whether it exists" to "whether it is good and professional"**.

I. Comparison of writing board luminaire requirements (core differences)

Comparison itemGB 7793-2010GB 7793-2025 (newly added/strengthened)Luminaire typeOrdinary classroom lights may also be usedMust use dedicated writing board lighting luminairesInstallation requirementsBlackboard lighting is sufficientExplicitly requires "dedicated writing board luminaires"Control methodNo explicit requirementAn independent control device should be providedIlluminance focusFocus on illuminance valueAlso focus on illuminance + uniformity + glareGlare controlNot explicitly proposedEmphasizes prevention of direct and reflected glareVisual health indicatorsNot involvedRelates to health indicators such as flicker and blue lightApplication scenarioFunctional lightingTeaching visual-friendly lighting

II. Key points "newly added" in the 2025 version, broken down item by item

✅ 1️⃣ Explicitly proposes:Writing boards must use "dedicated luminaires"

In the 2010 version, many schools:
The 2025 version explicitly states:Writing board lighting shall use dedicated writing board lighting luminaires

👉 This directlyeliminates the "ordinary luminaires serving both general and blackboard lighting" approach

✅ 2️⃣ Newly added:Writing board luminaires shall have independent control devices

This is avery important but often overlooked upgrade point:

2010 version:
❌ No requirement for "independent control" whatsoever
2025 version:
✔ Explicitly proposesBlackboard lighting fixtures shall be provided with a control device

What does this mean?

During lecturing / projection / self-study / multimedia switching
👉 The blackboard light can beturned on separately / turned off separately
Avoid:

👉 This is an improvement in teaching scenario friendliness

✅ 3️⃣ Greater emphasis on "anti-glare" and "visual comfort"

The 2010 version was more about:

Only looking at "whether it is bright enough"

The 2025 version begins to focus on:

Whether the teacher standing at the podium is exposed to direct light
Whether students looking up at the blackboard experience glare from reflections
Whether the fixture installation angle and light distribution are reasonable

👉 Blackboard lights have been upgraded from "illuminating the blackboard" to "protecting the eyesight of teachers and students"

✅ 4️⃣ Blackboard lighting is incorporated into the "healthy light environment system"

The 2025 version treats blackboard lightsno longer in isolation, but incorporates them into overall health indicators:

and:

👉 Higher requirements for luminaire quality, driver power supplies, and optical design

Frequently Asked Questions

Under the new national standard, can ordinary classroom lights still be used instead of blackboard lights?

No. GB 7793-2025 explicitly requires that writing board lighting should use dedicated writing board lighting fixtures, directly eliminating the practice under GB 7793-2010 of using ordinary classroom lights to also cover blackboards.

Why do blackboard lights need a separate switch?

GB 7793-2025 adds the requirement that writing board lighting fixtures should be equipped with independent control devices. During lectures, the blackboard lights can be turned on separately, and when switching to projection or multimedia, they can be turned off separately to avoid affecting teaching scenarios.

What new requirements does the 2025 version of the national standard have for anti-glare performance of blackboard lights?

Compared with the 2010 version, which only looked at brightness, the 2025 version emphasizes protection against direct and reflected glare, focusing on whether teachers standing at the podium are exposed to direct light, whether students looking up at the blackboard experience harsh reflections, and whether the luminaire installation angle and light distribution are reasonable.

What health indicators must blackboard luminaires now be evaluated against?

GB 7793-2025 incorporates blackboard lighting into the healthy light environment system. In addition to illuminance, it also addresses uniformity and glare, and links to health indicators such as flicker and blue light, placing higher demands on luminaire quality, driver power supplies, and optical design.