Giro2007;

I am not familiar with that 56w LED, but I can tell you this;
no way does 56watts of LED equal 250watts of HPS. At least with what I know of technologies of today.

There's an agricultural/technical term for claims like that.....BullShit.

IMHO the Procyon100 could replace a 250watt HPS nicely.
and BTW it ain't a perfect LED grow light, but it is a WORKING LED grow light. Just ask the SnStealth crew.