Growing under lights

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Growing under lights
David Pilling (Thu, 05 Nov 2015 14:14:30 PST)

Hi,

On 05/11/2015 21:54, Garak wrote:

Do you happen to know if a basic light-meter will work with the
red/orange/blue-LEDs which are designed to only deal light at the

Just guessing, but does a light meter see all the infra-red (heat) (from
non-LEDs and the sun) which may cause scorching.