hi i'm a first time grower and i'm planning on setting up my own growtent.. i've done a lot of research and what i plan on doing is to buy a homebox of either 39x39x78 or a bigger one wich is 56x56x78. i only want to have around 4 plants growing in my tent with max yield. should i buy the 39inch or the 56inch homebox if i tend to have 4 plants. and also should i be getting the 600watt hps or the 400watt hps? i tend to use the dwc bucket system... cause i heard they give yield like a pound per plant if grown on dwc buckets...i would really much appreciate all the advice i can get from the experts. and also how much is the average electricity cost go grow? cause i saw some saying that the bill went up 75$... thats freakin crazy!!! i live on SoCal and i am a patient.. so nothing illegal going on... 
keep on toking~~~
keep on toking~~~