Tony Hwang wrote:

mm wrote:

Which uses more electricity, a 75 watt light bulb, or a 150 with a
dimmer so that it is only as bright as the 75?

If one uses more, does it use much more?

Hi,
As bright means almost same not equal. So the question is moot.
For same kind bulbs takes same amount of energy to produce same
Lumen(brightness)

No, the balance between heat and light changes.

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