Technical question about ballast

Hi mates, my question is: Is it possible to change 200w CFL pulp to attached 400w ballast where was 400w HPS pulp. It does not heat up my cfl 200w or do any bad for it?

http://www.youtube.com/watch?v=Qw9oX-kZ_9k
And
http://www.youtube.com/watch?v=1a0v-9eNHS0&feature=PlayList&p=4B850A385F08BDD8&playnext=1&index=3

well man first of all im too stoned and that video was funny

Well i got this problem.... i have setup in my grow room with 400w HPS wit ballast ofc. And now i want to take that 400w HPS pulp away and put 200w CFl instead to that ballast... so my question is is it safe?

Yes you replied before the real answer was added, that was this one.

http://www.youtube.com/watch?v=1a0v-9eNHS0&feature=PlayList&p=4B850A385F08BDD8&playnext=1&index=3

CFL's need a different type of ballast, which is already built into the cfl.

CFL pulp? Bulb? Slyxdexia? Dyslexia? Re word that because I would hate for you to have a face of hot glass.