I'm looking for the high PAR though and all of the ones a higher K than my XM 10,000K's are a big drop in the PAR. These new Iwasaki's are even higher than thier 10,000K ones (which are the only ones higher than my XM's). It won't be until the end of 06 before they release the 20,000K Iwasaki's though. In retrospect I might have gone with the 250 watt ones so I could go up in color and still have high par.