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JPS
28-02-08, 03:02 PM
Hi all

With my new grow starting within the next 2 weeks and it being much bigger than my previous one, i will now have 12 plants.

My question is - Will 2 600w HPS lights be enough, i think it will, i'm only going to veg for 8 weeks?

Will i have the 5-0's knocking my door down from the heat they produce?

Hazza
28-02-08, 06:13 PM
what size is your space mate a think u will have problems with heat if your running 2 they give of massive heat i had problems with 1
a think 1 light would do just as gd but am a noooob!! so dont go by that just what ad have thought !

yardbird
28-02-08, 06:34 PM
I would use envirolites to veg them, HPS is overkill for the vegetative stage IMO.

If you are using a whole room, or most of a whole room, then 2x 600W HPS will be fine for flowering, but not so good if vertical hight is limited.

1200W of HPS is only 20% more electricity than a one bar electric fire uses per hour, so if you don't ventilate into a roof space you should be OK detection wise.

You're not planning to do your grow in a roof space, are you?