Zandor or harddon

Hey guys...just had a quick question for ya...i myself havent any experience with the Hortiliux bulb upgrades you can get with some of the system out there...its a pricey bulb so im sure it does have its pros.....anyway just wondered if you knew anything about them and if they were worth purchasing.....also heard you could use a hortilux bulb from start to finish......would this be acurate ?....ive always heard it to be spectrum debate....blues for vegg orange for flower.....heres the link of what im thinking about getting and adding on the hortilux bulb http://www.insidesun.com/index.php?a...=2&prevstart=0

thanks guys
PPP