Thankyou Chonged, thats very nice of you


Right as for you Marc yes it's very bad of you to hijack my thread..............................bet you didn't know I can be assertive did you


Only kidding love I've dug the book out and just looking in it, it's called..............."A guide to growing Marijuana in cool climates" and it's written by someone called Don Irving.

It says that a 400 watt MH lamp gives 30,000 lumens light output enough to cover 35 sq ft.
Also an 400 watt HPS lamp produces 50,000 lumens and will cover 50 sq ft.


Marc love what are you doing to me here, you're sending me all kinda technical ........much more of this and I'll be talking about the red and blue end of the light spectrum..................it's ok I've still got the book open


love mand xxx