Well i`m planning to add a hps light after some bigger harvest to get money for better growbox....
The closet - 50$
Hps 250w - 80$
Carbon filter - 30$
Cooltube - 30$
Ventilation - 20$
Total cost at least 200$ plus all the little "things" would make a hole in my pocket

But that`s for good reasons
There I could use some help... Now I have box which is like 100w32d42h centimeters ..... I`m planning to grow 12/12 from seed and I would like to grow some more strains at the same time so i would get variety grow ... So I`m planning to buy new box after a while and haven`t really decided the new size for box.... I will grow with scrog so it wont need to be very high something like 70-80cm high would be ok. i think!?
Cool tube is 12cm high so the question is how close i could put the plants to 250w hps light? Should 2x8cm pc vent`s would be ok for venting cooltube or should i put something bigger?
And those these channel ventilators would be good for ventilation?
http://www.buvserviss.lv/userfiles/Image/katalogs/w579/db_modeli/kan_tdm-100.jpg
I`m planning to grow like 4 plants and the new box could be like 80w40d80h centimeters.... I`m just thinking if i make short box then does the hps will cover all the box area if the box would be 1m wide? And the pot height wont be big because i could plant in boxes which could cover all box floor from inside so there would be enough space for roots
Anyway you could help me to decide what is better... I want to grow about 4 plants in a one big scrog .. i know i could easily fill that space with 2 plants but all i want is even the same yield from 4 like from 2 but the difference in strains so I wont have to smoke the same bud every day

I could use hps or cfl`s .... kinda want to make smaller electric bills as possible...
If anyone have something similar with my plan then please post some link or idea
