File:SPECTOR light 11W.JPG

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English: Disassembled 11-watt LED light bulb (1050lm). Intermediate quality product for 1.68€. There were found out next properties during examination:
  • Advantages:
    • low price
    • flickerings are missing
  • Disadvantages:
    • improperly calculated values of inductors and capacitor - light bulb saves less energy than possible
    • cosφ=0.5434
    • very thin heat sink - lifetime is reduced
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Author Dmitry G
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Date/TimeThumbnailDimensionsUserComment
current08:00, 4 September 2022Thumbnail for version as of 08:00, 4 September 20223,640 × 3,350 (3.78 MB)Dmitry G (talk | contribs){{Information |Description={{en|1=Disassembled 11-watt LED light bulb (1050lm). Intermediate quality product for 1.68€. There were found out next properties during examination: *Advantages: ** low price ** flickerings are missing *Disadvantages: ** improperly calculated values of inductors and capacitor - light bulb saves less energy than possible ** cosφ=0.5434 ** very thick heat sink - lifetime is reduced}} |Source={{own}} |Date=2022-09-02 |Author= Dmitry G |Permission={{...

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