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Technical environment

Technical environment

Global standard 220V-240V/50Hz-60Hz
Standard for USA/Canada 120V/60Hz, 277V/60Hz
  • 中文

Our contents are shown to you in English. Product data is displayed for a technical region using USA/Canada 120V/60Hz, 277V/50Hz-60Hz.

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Photometer: an instrument for measuring photometric quantities

Photometer

A photometer is a device for measuring photometric quantities. The measured parameter is mainly illuminance, and other photometric quantities are derived from the illuminance. Photometers are adapted to the spectral brightness sensitivity of the eye.

Goniophotometers are special measuring devices for determining the luminous intensity distribution of luminaires. Either the measuring head moves around the luminaire or the luminous flux of the luminaire is directed, via a movable mirror, onto the fixed measuring head.

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