How many weeks with hydro

wondering how many weeks a plant takes when u use a hydro set like this
http://www.aquaculture-hydroponics.co.uk/product.aspx?tabID=1&productID=1277&categoryID=344&subCategoryID=344

i know its like 12-14weeks with soilbased handfeedng.but ive heard there alot quicker with a set like these...whats your views

hydro is usually faster flower times than soil...but the time it takes to flower is more about the strain you are growing...hope this helped... :^)

helpd alot thanx
hope to get some other views