How close should 150w hps be?

texastiger707

Active Member
Happy Holidays everyone. I have 2 autos that are 10 days old. I am using a 150w hps inside a small grow box. I was wanting to know how close should the hps be for 10 day old plants?
 

donnydoggy

New Member
Happy Holidays everyone. I have 2 autos that are 10 days old. I am using a 150w hps inside a small grow box. I was wanting to know how close should the hps be for 10 day old plants?
depends on temps best way use hand hold it foot away and if dont feel hoy move hand closer to bulb
 
yah about 6-8 inches away, if you have a fan blowing as low as 3-5 ins, i dont have an inline fan for my heat so i just keep it 6 inches away
 
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