Between these 2 witch one is the better set up... I have some cash to waste so I was wonder witch would you guys recommened...

Liquid Lumens and 1000w Lumatek Ballast

and i had a question what is the difference between 120 volt and the 240 volt ballast? can any one give me a simple answer other then one is double the wattage... what are the advantages and disadvantages...and i will also be adding the HydroFarm Active Air 1/2 HP and the Liquid Lumens Radiant Reflector to this setup if i go with this system...

or would this be the better system

Hydrofarm Radiant 8 AC - Lumatek ballast grow light system from Growco Indoor Garden Supply

Radiant 8 AC - 1000W Lumatek 240V Ballast

thanks again guys