i have 925 watts in total i have a 600 watt hps light 85-90,000 lm and 3 envirolights in a space thats much smaller tha yours jus in a wardrobe cupboard thing so i rekon youll be fine
as far as i know you cant really have too much light
just watch out for the heat... thats a killa if you have too much (like me)
and yea you will need more light for that space size (probably)
oliwog Reviewed by oliwog on . too much light? i have a grow area 6'sq which requires about 15,000 lm of light, if i bought a 150watt HPS light that would produce 16,000 lm which seems enough but i was told the more light you have the better the bud so if i bought a 250 watt producing 28,000 lm would this be too much light. what would happen if i flooded my plants with light? thanx 4 the help. Rating: 5