LED Lamp Bead EN62471 Certification
Standard background and positioning
EN 62471 is a photobiological safety testing standard issued by the European Union for lamps and lighting systems (including LEDs), aimed at
assessing the potential hazards of optical radiation to human eyes and skin. This standard has fully replaced the energy level requirements for
LED products in IEC/EN 60825, incorporating additional photobiological indicators such as radiation intensity and radiance, and classifies product
hazards based on test data.
Scope of application
All lamps and lighting systems other than lasers, including LED lamps, incandescent lamps, fluorescent lamps, gas discharge lamps, arc lamps, and
other lighting products. The testing wavelength covers the full spectrum from 200nm to 3000nm, encompassing ultraviolet, visible light, and infrared
rays.
Core testing items
Photochemical UV hazards to skin and eyes
Near-ultraviolet hazards to eyes
Retinal blue light hazard
Retinal blue light hazard (small light source)
Retinal thermal hazard
Retinal thermal hazard (low-luminance visual stimulation)
Infrared radiation hazard to eyes
Hazards of skin heat exposure
Hazard classification system
Exemption level (RG0): No hazard, safe regardless of observation time
Type I low hazard (RG1): No hazard during normal use, with a maximum allowable exposure time of 10,000 seconds (approximately 3 hours)
Category II medium hazard (RG2): The human body will naturally avoid due to discomfort caused by glare or thermal radiation, with a maximum
allowable exposure time of 100 seconds
Type III high hazard (RG3): Even instantaneous exposure can cause radiation hazards, with a maximum allowable exposure time of 0.25 seconds
Materials required for certification
2 sets of samples
Product User Manual
Bill of Materials (BOM)
Application Form
Circuit diagram and PCB layout
LED specification/data sheet
Product function description and LED light source quantity specification
Details of pulse structure (if applicable)
Relationship with IEC 62778
IEC 62471 is a comprehensive standard covering the full spectrum of ultraviolet, visible, and infrared light. IEC/TR 62778 specifically focuses on
the detailed assessment of retinal blue light hazards (IEC 62471 clauses 4.3.3 and 4.3.4), primarily addressing the transmission of photobiological
safety information from light source components to lighting products, as well as recommendations for exposure distance and hazard classification.
For general lighting fixtures, the assessment distance is typically taken at a location with an illuminance of 500 lx, and is not less than 200 mm.
Mandatory requirements of regulations
In the EU market, all LED products, as part of the CE marking, must pass the EN 62471 certification. If the hazard level of the product exceeds RG1,
the photobiological risk classification must be indicated on the label. Additionally, the CB certification for self-ballasted LED lamps must also include
the IEC 62471 photobiological safety testing.
