How close to plants HPS ?

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hero4u2b

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Hi everyone.. I have never flowered with an HPS cooltube and am getting ready to do it.. How far should I keep the cooltube from the canopy of my plants so as not to burn them? Thanks Hero
 
Put your hand below the lamp. When you can have your hand below the lamp more than 10 seconds without feeling too much hot is good.

The cooltube is good because you can have your plants really close to the light. The only problem is the dispersal of light that isn't that good.

Good luck :aok:
 
yes thats a great way to set the light...I run 1k hps cool tubes and I hold my lights about 8 inches from canopy


take care and be safe
 

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