i do not recommend this light.
lousy bulbs and lousy ballasts. you will end up replacing them.
a good quality fixture with those specs, and yes, you can keep anything, but there is a good chance you will be dis-satisfied.
if your not handy with replacing parts spend the money on a better fixture. as x said the bulb and ballast are garbage. if you okay with doing these changes its as good as the coralife(once changes are made)
i think it would probably be a little cheaper replacing the parts. in that price range i like the current usa products. coralife is in the same class but i think the current stock bulbs are better and a better product overall.
i like the outer orbit hqi, t5ho with moon light fixture, expensive but well worth it, will provide all the lights you could want MH, actinic and moonlights.