From the research I did in the last couple of days..Some say they tested growth for two years prior to the release of the product..The problem is as a human we think intense as being hot super blinding ahh a.k.a. the sun light..But the perams of the l.e.d.'s are superb..For one u can control a real cycle of the moon and day to next day light cycle..It will change coral growth and breeding for ever..wjen they are no longer in the Bill gates price range!!!