• TreczoksEnglish
    10·
    2 months ago

    I recently bought an LED light. It claims - on Amazon and on the label on the box - to be a 12W LED light. The Energy Usage Classification on the very same label also claims it uses 7kWh/1000h. Something does not add up here…

    • jedibob5English
      3·
      2 months ago

      I know that they often label LED lights with the wattage of an incandescent bulb of equivalent brightness, since that’s what people are used to, but I don’t think incandescents ever went as low as 12W…

        • jedibob5English
          1·
          2 months ago

          Interesting, I didn’t think an incandescent filament would even appreciably glow at 4W.

          • GreyEyedGhost@lemmy.caEnglish
            2·
            2 months ago

            Well, oven lights are notoriously dim, little better than a night light (which also used to be incandescent).

      • TreczoksEnglish
        1·
        2 months ago

        Nope. There was a “incandescent ligh bulb equivalent wattage” on the amazon page, which would fit the 12W, but not what I saw in light power.

    • manmachineEnglish
      1·
      2 months ago

      Perhaps the second figure is “average actual use per day” or something?

      • TreczoksEnglish
        2·
        2 months ago

        The “7kWh/1000h” is the official measurement by the independent lab for the energy classification. So I’d say they are closer to reality.

        Apart from that, for a supposed 12W light, it was rather on the weak side. So that 7W measured figure fits better than the manufacturers 12W label.