FWIW - my failure rate on the OEM Dohgah power supply has been 100% within 5 years. OK so it's a small sample set - two of two units. Both have been replaced with the Phihong supply and now one of those has failed within a year. Both HC300s are on substantial surge protectors with battery back-ups. I think the problem is that both supplies are the bottom of the barrel of the lowest form of made in China crap. Unfortunately no one makes this class of power supply outside of China, but I'm replacing this time with a TDK-Lambda unit. Hopefully it lasts longer than a year or two. And hopefully Control4 has upgraded this weak link in newer hardware.
