Problems with footcandles, lux and lumens

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September 23, 2013 - Author: Erik Runkle and Bruce Bugbee

The horticultural industry should discontinue use of photometric units such as lumens, lux and foot-candles. These units are based on people’s perception of light and are a highly misleading indicator of plant growth and flowering applications.

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  • floriculture,
  • light management in greenhouses and controlled environments

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