Don Klipstein wrote:
In article , WW wrote:

EDIT FOR SPACE

Had same problin. Cured by adding a 5 amp diode in seris with the hot side
of line voltage. Installed a 300 watt bulb. Diode dropped wattageto about
75 watts. That was 24 years ago, WW

A 300 watt incandescent with a diode dims to brightness of about a 75 or
100 watt incandescent, but consumes about 175-180 watts. (Not 150 because
the cooler filament has lower resistance.)

Thank you. I will add that the same holds true for dimmer switches.
They waste a hell of a lot of electric due to running lights at less
than their rated wattage which makes them very inefficient.

Three way bulbs in table lamps save more $$ than any dimmer switch.