• Treczoks@lemmy.worldEnglish
    10·
    9 days 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…

    • jedibob5@lemmy.worldEnglish
      2·
      9 days 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…

        • jedibob5@lemmy.worldEnglish
          1·
          9 days ago

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

          • GreyEyedGhost@lemmy.caEnglish
            2·
            9 days ago

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

      • Treczoks@lemmy.worldEnglish
        1·
        9 days 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.

      • Treczoks@lemmy.worldEnglish
        2·
        9 days 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.