best lights for a grow tent

hello people ,
wat would be the best light or lights for a grow tent 1.2M X 1.2M X 2M
plz reply

Rule of thumb is at least 50 watts per square foot.

Vi

you got a fan and everything, i'd probably go with 400 watt hps or if you are somewhere warm maybe 250

I would go with at least a 400 watter for that space.

actually yeah didn't really pay attention to the size