Published at Saturday, October 17th 2020, 03:39:43 AM by Ada Muller. Ceiling Lamp.
Where all else fails, an incandescent lamp run below its rated wattage on a dimmer switch will save electricity and increase the lifetime of the lamp. I am often asked if running a lamp at, say, half power using a dimmer switch saves half the running cost. The answer is more or less yes (a very little power is lost in the dimmer switch, but this is negligible). Thus it makes good sense to run lamps more dimly on dimmer switches, except on moments when the brightest light is needed.