Colorsource Spots failing

I have a number of Colorsources Spots that are around 4 years old and recently I have had 3 fail and need to be repaired. the issue is 3.3-volt rail shorted. Replaced control card. They are part of the house hang so they don't get moved around often, they however do get power 24/7. Is it just the age catching up? Thoughts?

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