I calculate (roughly) about 138W of actual LED power from the Rhino, based upon their claimed 172W of total power draw (total power minus power supply inefficiencies). So they are running their 3W Osram LED's at about 2W each. For $799.-, this is about $5.78/ Watt, this is a pretty spendy light.
Also- it will be very difficult to maintain the junction temperatures of the LED's cool enough to get thier claimed 80,000 hour working life wiith out a fan- this is a very dubious claim. I have tested many, many 100W+ LED light fixtures on big chunks of aluminum, without fans- things get hot!!! Things get hot, LED lifetimes come down- rapidly. 25 - 30,000 hours is probably a more realistic lifetime claim- I think they pulled the 80,000 hour lifetime number out of their a$$.