Cree actually bin at 85C, not test, that is to say that the bins are yielded/selected for output based on both 25 and 85 C, the output number drops of course at 85 V 25, the hotter they run the less light they produce. This is referred to as hot binning. The reality is the moment you fire an led it reachs 25 C almost instantly so it has little value as a spec in real world applications, this applies to pretty much every led cree manufacture and most of Crees competitors have gone the hot bin route, because it reflects real world apps, not sure did I say real world enough times
Cheers
Mark