Well I'm still trying to figure out how to say it.

cfls....13,000 lumens is the best youll ever get from them. At one inch, at six inches, you will NEVER get more than 13,000 lumens...you see what I mean? Your cfls are also pretty useless at anything beyond...say....a foot. So they are only good for one foot of light anyway.

So an MH bulb ALREADY starts with TWICE the lumens (25,000) and its already DOUBLE the distance...(1 foot)...or perhaps even MORE than double the distance than a cfl. Still starting with 25,000 lumens. It just can't lose that race.

Drop it back to two feet from target.....5000 lumens and so on.....