What are the requirements to yield a KG indoor

Whats the story everyone? So like the title says what would ya need to do it?( I really wana kno what the smallest setup you could yield a key with) And before everyone starts say it all depend on the conditions lets say that everything is running perfect!

And everyone pass it around

lumetek dual 600 ballast..w. 2 600whps...footprint 3x3 areas for ea hood. at the least. w/ proper proper vents...providing everyting go perfect