Contact premium aquatics and ask if there is a release date for the Iwasaki 15,000K's. They were "supposed" to be out in the first couple months of this year. If so you can pack one heck of a par punch as well as a true 15,000K color rendition. I know the 175's I have really put out some par. In order to go up in par I had to go to 400 watts.