DC fans

Bought a DC desk fan uses 10 watts . Similar AC ones are around 30 watts.
Was telling my neighbor about the energy saving ..they asked WHY is a dc fan more energy efficient.
Didn't have an answer ... anyone know?
Was telling my neighbor about the energy saving ..they asked WHY is a dc fan more energy efficient.
Didn't have an answer ... anyone know?
2225 wattts pv . Outback 2kw fxr pure sine inverter . fm80 charge controller . Mate 3. victron battery monitor . 24 volts in 2 volt Shoto lead carbon extreme batterys. off grid holiday home
Comments
Efficiency measures have not been applied to AC fans in the same manner.
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5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Seems to have a good airflow .... but not specs on that. Indeed it has 5 blades .