Ok so I'm turning my vented room to a sealed one.. the summer will be simply too hot for my shed otherwise an don't want to just suck out the cold air.. now I just installed 2 window units in my shed one 45 or 5500 but for the room with the 3x3 tent an a 6500 for the 4x8.. now right now I jave just a winged reflector.. if I were to switch to a vented hood well 2 vented hoods cause I'm about to add another 600 watt light how would I set the lights up? Fan to light to light to outside intake or cool with conditiond room aiir? That would kinda defeat the pirpose of a sealed room sucking from the room but will the hot outside summer air really cool enough to cool the light good enough? I had an 8 inch Apollo fan as my exhaust fan but gonna keep that hooked to my filter for air scrubbing.. Will a 4inch or 6 inch be needeneeded to cool the lights?