Lighting suggestions

Hey guys so I need some advice on what lighting I should go with. Looking to start with lps corals and maybe in the future go to sps as well. What do I need for wattage per gallon? I was looking at the fluval marine and reef gen 2. And the current USA orbit marine pro? Any suggestions? My tank is 90 gallons 48 long 18 wide and 24 deep. Thanks guys