I have a basic desk lamp, plugs into the wall, simple on/off switch, standard bulb socket. 120VAC @ 60Hz goes to that socket. I have an A19 standard size LED bulb that says "120V 9W 130mA" in there. My math tells me 120V and 9W means 75mA, not 130mA. Is there something going on like AC amperage …

LED Bulb Bulb

Wawa September 21, 2016, 9:00pm 8

Inside the bulb base is most likely a DC/DC converter that is not a resistive load.
And a DC/DC converter also uses power.
Leo..

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