One option could be to overdrive the existing bulbs, it's cheap and quite a simple modification, just require changing the ballasts. http://www.gpodio.com/overdrive_twin_strip.asp Hope that helps Giancarlo Podio _______________________________________________ Aquatic-Plants mailing list Aquatic-Plants at actwin_com http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants