We have a set of H605FC's purchased 4 years ago and in the past 3 years we've had half of them fail. It seems like the power supplies go bad over time, and in the past month or so we've seen an alarming number start to fail (probably half of the half that failed were in the past 6 months). We have a number of Chauvet fixtures and my experience with them is that the weak links are their power supplies. Can anyone share similar experience? It also seems like the PSU's they source for these are also backordered.