you will more than likely need a chiller with those lights.
I have the 48'' model, without a chiller my temp would be in the mid-high 80's
You can pick up a good chiller for about 400 bucks. I highly recommend one. Especially if you are doing Corals.
I have the Artica Chiller 1/10 HP cost $400
It is also great peace of mind knowing that my Temp. is always stable keeping everyone in my tank happy and thriving.
Good Luck