How many plants can i grow in this( Approx HEIGHT =101cm DEPTH =40cm WIDTH = 92cm)

Well as the title mentions how many plants should I grow in this growspace? ill be growing short-strained plants so height no worry. So how many plants can I grow in this growspace? Approx HEIGHT =101cm DEPTH =40cm WIDTH = 92cm

2 or 3 at the max

Jesus serious?http://www.hg-hydroponics.co.uk/mini-stealth-grow-cabinet---complete-kit-1665-p.asp this is the product here I emailed the guy and he said 6 plants were ideal ;/