SHONOFF98
Well-Known Member
I have one little baby plant (how cute) it is 4 days old. I have my 150w HPS approximately 17" away (measured from the soil to the light). I read alot that says if you can put your hand over the plant and it's not to hot then it is good. I could lower the light probably 3-4" and it would still be fine, according to the hand test, but I've also read that it is way close for a baby plant.