servodude wrote:It might be worth getting the supply checked...(or any big inductive loads on it!) if LEDs are blowing regularly (over/under voltage, surges) it could be prematurely aging other more expensive gear
That said if they're sitting wonky in bayonet fittings I'd start there!
While the LED itself doesn't produce much heat the power conversion gubbins might, especially if the input supply isn't where it was expecting it to be
We also have problems with regularly failing LED units in our commercial building, costing us a fortune and supporting the microplastic supply.
We have dozens of bayonet type 240V AC ceiling-mounted units. They are all enclosed in a reasonably sized
bowl. They seem to get pretty hot but are surely designed to be used in this sort of ceiling-mounted enclosure -- I can imagine even smaller volume enclosures like
this would be common...
Now clearly hot air rises, so being ceiling mounted there will be minimal convection cooling, but apart from this could there be other causes for them overheating? What @servodude said above about inductive loads piqued my interest. If that might be a problem what sort of devices should I be treating with suspicion? Fridges? Washing machines? Fans? Microwaves? Any other likely causes for the failures? We have tried a variety of brands with similar results.
Assuming we find an inductive-load culprit or similar, and given we have a 3-phase supply, would it help to put all the lighting circuits on one phase (maybe along with less-used plug circuits or harmless appliances) and everything else on the other two phases? Or is that ill-advised -- sparky might know, @csearl? Is there a protective device we could install on that phase to help the LEDs?
Grateful for any advice...
GS
EDIT: maybe drilling ventilation holes in the ceiling units would help with cooling?