Eye Care Desk Lamp AA Grade Test Report Processing

Now, with the excessive exposure to electronic devices, people's eyesight is deteriorating more severely, making eye-care lamps a necessity. The working principle of eye-care lamps: they increase the low-frequency flicker to a high-frequency flicker. These lamps use a variable frequency electronic ballast to raise the current frequency from 50Hz to 30-50kHz, making the flicker imperceptible to the human eye. They also use trichromatic phosphors to produce soft light, thereby reducing eye strain. Another principle: they convert AC to DC before lighting, achieving essentially flicker-free illumination, which helps alleviate eye strain. They also emit no electromagnetic radiation. A good eye-care desk lamp not only utilizes a light source but also features a well-designed optical module, eliminating visible flicker and glare, thereby protecting children's eyesight.

To meet the AA-grade standard for desk lamps, they must comply with the performance requirements of the GB/T9473-2017 standard for reading and writing desk lamps.

As the name implies, it is a constraint on the performance of desk lamps, which are used for reading and studying. The standard has requirements for reading and writing desk lamps in terms of usage, performance parameters, and more, as detailed below:

Section 1: Applicable Scope of GB/T 9473-2017 Product

This standard applies to desk lamps used for reading and writing lighting in homes, classrooms, and similar settings, as well as those labeled "eye-care." Therefore, when users see the term "eye-care" on a desk lamp, they generally expect it to meet this standard.

II. Product Grade Classification

Luminaires are categorized by brightness levels into Grade A and Grade AA. Grade AA has a higher grade, with more stringent performance parameters and better eye protection than Grade A.

Section 3: Parameter Requirements

The specific parameter requirements for Grade A and AA table lamps are as listed in the following table:

Section 4: Performance Requirements for Eye-Care Lighting Fixtures

This standard specifies the performance requirements for reading and writing desk lamps with tungsten filaments, fluorescent lamps, or LEDs as light sources, with power supply voltage not exceeding 250V.

1. Safety Requirements: Lighting fixtures must comply with the requirements of GB 7000.204.

2. Radio interference characteristics: Shall comply with the requirements of GB/T 17743.

3. Power harmonic current limit: Should comply with the requirements of GB 17625.1.

4. Lighting electromagnetic radiation to human body: Shall comply with the requirements of GB/T 31275.

5. Photobiological Safety: The blue light hazard category of lighting fixtures using LED power sources, as evaluated according to IEC/TR 62778, should not exceed RG0.

V. Requirements for Light Sources Used in Lighting Fixtures and Their Control Devices

The chart reveals that the GB/T 9473-2017 standard sets requirements for light sources and the LED control devices used (i.e., LED driver power supplies). Ensuring these components are up to standard can better guarantee that the finished desk lamps meet the entire standard's requirements.

In summary, the GB/T 9473-2017 standard sets requirements for parameters such as the blue light hazard level, color temperature, luminance, luminance uniformity, electromagnetic compatibility, and noise of desk lamps, better protecting consumers, particularly children and teenagers, from eye damage.

If you have a desk lamp that needs to apply for an AA grade test report for an e-commerce platform and require the report to include CNAS, CMA markings, QuickPass can handle it for you. Contact Engineer Li on the right for a phone number or scan the WeChat QR code for a quote and more information.