where do i put it?

i got two free 70watt hps lights today. they are wall lights heres a link to them http://www.rabweb.com/product_detail.php?product=WPTGSH70QTW

so my question is do i add them to my flowering room which has a 600watt hps in a cooltube (to keep temps down). or do i add them to my veg room which has 400watts of flourecents (all cool white). or are these lights more work then thier good for and should i not even use them. its hard to pass up free hps tho.

flower room...

more bud > bigger mothers

my room temp stays are around 75 when the 600w hps is on and 60-65 when off. do you think this will change alot with an added 140watts that is not in anything. would love another 140watts in there but im not sure if the temps will stay cool. the room is 2 1/2ft by 4ft. and 6 1/2ft tall.
thanks guys

only one sure way to find out

oh yeah - this is the small closet grow, you were debating on 600w vs. 1000w

600 watts not enough?

should be straight... put them both in there and pray it stays below 80.