PlatinumKasse Well-Known Member Nov 18, 2007 #1 how far do i put 2-3 inch sprouts that have an inch (radius) of first leaf set from a 400w HPS light?
how far do i put 2-3 inch sprouts that have an inch (radius) of first leaf set from a 400w HPS light?
K kindprincess Well-Known Member Nov 18, 2007 #2 start at 24 inches, let them veg up to be 12-16'' away, what ever the back of your arm can handle... if using an air cooled reflector or cool tube, you can keep it much closer.
start at 24 inches, let them veg up to be 12-16'' away, what ever the back of your arm can handle... if using an air cooled reflector or cool tube, you can keep it much closer.
ccodiane New Member Nov 18, 2007 #3 About 18 inches is fine. You can go down to 12 inches if high temps aren't a problem.
email468 Well-Known Member Nov 18, 2007 #5 my seedlings are usually about 24" away from my 1000w air-cooled.