A PS question for the Solaris

So I am running an I4 72" Solaris light and have had all the power supplies replaced for free with the modified ones. I am in the process of trying to clean up the clutter under my tank and had a question concerning the 3 power supplies. That being said, I was just wondering if it is possible to use just one PS that is rated 800 watts to run all three power cords on my light. I found one that had 4-12V outputs rated at 30 amps each. I've tried to do my due diligence and research this online, but haven't been able to find a definitive answer.
 
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