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Characterizations of LED Light Engines and LED Lamps for Electrical and Photometric Properties as a…

Approved Method: Photometric Testing of Skylights and Tubular Daylighting Devices under Hemispherical Sky Conditions Published…

Approved Method: Measuring Luminous Flux and Color Maintenance of LED Packages, Arrays, and Modules Published…

Measuring Lumen Maintenance of LED Light Sources Published By Publication Date Number of Pages IES…

Approved Method: Total Luminous Flux Measurement of Lamps Using an Integrating Sphere Photometer Published By…

Electrical and Photometric Measurements of Solid-State Lighting Products Published By Publication Date Number of Pages…

Intensity Distribution of Luminaires and Lamps Using Digital Screen Imaging Photography Published By Publication Date…

Approved Method: Guide to Goniometer Measurements and Types, and Photometric Coordinate Systems Published By Publication…