Many regional standards and regulations require a manufacturer of directional light sources to publish the beam angle (or beam angles for non-symmetrical... more

CIE S 025-SP1/E:2019 Test Method for OLED Luminaires and OLED Light Sources

This supplement to CIE S 025:2015 Test Method for LED Lamps, LED Luminaires and LED Modules specifies the requirements for measurement of electrical, photometric, and colorimetric quantities of OLED luminaires and OLED light sources... more

CIE 235:2019 Optical Measurement of LED Modules and Light Engines

LED modules and light engines represent a wide range of very different products with unique physical properties. Thus, they can neither be treated as single LED packages (where measurements refer to a specific junction temperature... more

Position Statement on Non-Visual Effects of Light - Recommending Proper Light at the Proper Time, 2nd edition (October 3, 2019)

For download: CIE Position Statement on Non-Visual Effects of Light - Recommending Proper... more

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