That's not good of them...
so many types of led diodes... e.g. my bloom box has a total of 1248 diodes, lol... but, only ~480-500watts.
a multimeter for $10-20 usd could do it (guessing on price). they only show the max wattage per diode on the specificiations that i see, so that's not useful either.
~100w? 150W? maybe, a bit more too... can't tell size.