I'm talking about this one here. If you have experience, or are aware of the pros and cons of this unit, please tell me. Thanks.
http://www.ebay.com/itm/400-watt-400w-Dimmable-HPS-MH-Grow-Light-System-Set-Kit-/150656047425?pt=LH_DefaultDomain_0&var=&hash=item2313ccd941
http://www.ebay.com/itm/400-watt-400w-Dimmable-HPS-MH-Grow-Light-System-Set-Kit-/150656047425?pt=LH_DefaultDomain_0&var=&hash=item2313ccd941