The room is 5ft by 7ft by 8ft high. I have 2 jack herer and 1 white widow grown from cuttings in a grow bag together. I have a system that allows me to easily move the lights up and down, when necessary. I have a small fan in the room and a wall grill allows air circulation. I have another light that could go in another space (cupboard). Everything is on a timer, they have been flowering for 4wks.