lighting

[chirp]

Whats up
I've got about two weeks into my plants now I'm running them on a 400 watt hps. about of far should i keep it away from the plants and how do I avoid overheating. All help appreciated

 

[umbra]

18 inches and keep a fan on the plants 24/7

 

[Mr. Bubbles]

AT least 18 IMO especially if you reflector is not enclosed.

 

[lowrydergrower775]

i keep my 250 watters 12 inches away so id say 20 inches atleast because 400's get hot