Enough? Its a huge overkill but if you are familiar with fertlization and CO2, go for it thou it might be hard to keep it stable anyway. Small mistake=catastrophe. I would choose 70w instead of 150w but actually I`d consider leds if it was me choosing lights now. I suppose you want grow some more light/CO2-demanding plants, don`t you? Otherwise muchmuch less light is safer (and less work-) option.