Lighting distance! Need some help!

Nightmarecreature

Active Member
I have a 600 watt MH bulb. It's set to 400 watts via my Lumatek Ballast. My reflector is a cool tube. I wanted to use a meter that measures lumens but I wont have it for awhile. What's distance should I use for Veg growth?

Should I put it as close as possible that's comfortable for my skin?
 

jpockets420

Well-Known Member
yep, just put your hand at the top of the canopy, if its comfortable you are fine. I usually start my 400w hps at 2ft then work down to 16 inches and thats as close as I will get. That is the rule for established plants. For seedlings or younger plants I would keep it 2-3 feet away so they don't burn.
 
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