IES LM-79-08 standard
Approved Method: Electrical and photometric Measurements of Solid-state Lighting Product
Photometric Results
Colorimetric Parameters:
- Chromaticity coordinates: (Chroma x / Chroma y / Chroma u(u’) / Chroma v / Chroma v’)
- Correlated Color Temperature (CCT)
- Duv Value
- Color Ratio
- Peak Wavelength (nm)
- Half Bandwidth (nm)
- Dominant Wavelength (nm)
- Color Purity
- Color Rendering Index (CRI – Ra)
Photometric Parameters:
- Total Luminous Flux (Lumens)
- Luminous Efficacy (Lumens/Watt)
- Radiant Power (Watts)
Electrical Results:
- Input Power (Watts)
- Input Voltage (Volts )
- Input Current (Amps)
- Power Factor
- Input Frequency (Hz)
Additional Parameters:
- Stabilization Time (Light and Power) = 60 minutes
- Test Geometry Configuration = 4π
- Spectroradiometer = (Lisun LMS-9000A Plus)
- Ambient Temperature = 25.0°C
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