What Happened to the 100000 Hour LED Bulbs?

Re:What Happened to the 100000 Hour LED Bulbs? by chris_va on Wednesday February 06, 2019 @01:19PM (#19097951)

If cost were less of a concern, what engineering changes would you make to the bulb?

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Re:What Happened to the 100000 Hour LED Bulbs? by phasetransition on Wednesday February 06, 2019 @02:11PM (#19098599)

#1 more die. More die means less current per die, which helps efficacy in a nonlinear way (google "LED droop") #2 better passives. Aluminum polymer caps, for instance #3 lower temps, in however you want to achieve that aim #4 some TVSS element if there wasn't one already

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Re:What Happened to the 100000 Hour LED Bulbs? by xxs on Wednesday February 06, 2019 @05:46PM (#19100911)

There:

  1) Better cooling: non-tooth paste thermal compound, more space for heatsinks
  2) Not overdriven LEDs
  3) Introduce DC power lines (within the house/building) -   galvanic corrosion still might be an issue
  4) In lack of point 3 - more efficient AC -> DC converters, preferably with lower temp threshold, 
  having 150C default for the internal mosfet on 8pin LED driver is really high.
  4a) AC-DCs require quality passive components: coil and caps.

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