I am considering buying a new 250w DE IceCap ballast and noticed that you have two difference IceCap ballasts on the site. Some are labeled "new" ballasts and don't appear to come with a ballast box and other ones do appear to come with a box (older ballasts?). What is the difference between these "new" IceCap ballasts and the others? I really liked the blue IceCap ballast boxes and would rather have one of the older models if they come with the box, but if the newer ones are much better I would probably get a new one. Any info you can give me is greatly appreciated. Thanks!