lights and box size

all depends how effective/efficient the lights are. not all 120w leds are the same, some use fair better didoes and power drivers. Yellow house hold lamps use tungsten and the majority of the energy coming off of that is in heat vs visible light. They won't be adding much to the light profile and the LED should be ok for now. Best to upload a diary and track your grow. Maybe add the lights model and see if other have also used it. Sometimes companies lie about how much its actually pulling from the wall. Good Luck!

Deine 120 w werden dein Zelt alleine gut befeuern.