Check this out,my grow box is about 4 1/2 feet wide and 5 feet long! the height is 5 feet 6inch's,I have a 1000w hps for flowering,the bulb is hung inside the hood running horizontal,all the walls are painted with flat white as I mentioned before heat is a little problem,which I am correcting as we speak.

#1 Do you think in a grow box that size i could do without the reflector hood,would the lumens remain the same? or should I keep the hood?

I figure I could probaly lessen the heat by removing the hood! and just let the bulb hang!................but if I am going to lose a big amount of lumens maybe I should keep the hood?,,,,,,,,,I plan on getting either a ac unit in the next week or so,or make my own fan with glass for the bulb.....do you think if I removed the hood my heat would reduce alot???? here are a few pics.