the cfm is only 112 for your room.4x4x7= 112.
what is the wattage of lighting
wow, your crazy to even atempt this without knowing what the wattages are. holly shit dude thats a fire waiting to happen, guaranteed.
the power strip has nothing to do with that its the light and ballast.
you need to take it in and have it tested to see what the wattage of the ballast is before you do anything