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Footcandle

What is a Footcandle?

A footcandle is a measurement of a lamp’s light intensity of a lamp, defined as the illuminance on a square foot surface from a uniform source of light. One footcandle is equal to the intensity of light emitted by a single candle at a distance of one foot.  

How Many Footcandles are Needed for Indoor Growing?

 

The ideal footcandles for indoor cultivation varies depending on the specific plants you are growing. Generally speaking:

  • Low-light plants need 50-250 footcandles.
  • Medium-light plants need 250-1,000 footcandles.
  • High-light plants need upwards of 1,000 footcandles.
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