LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Au contraire! While a variable resistor would save less energy than a dimmer, even it would still save some. If the total load-and-dimmer amperage drops, some energy is saved.I think that would be a dumb rule since a dimmer does not save electricity. All the dimmer does is chop the 60Hz wave form. The rest of the load will be at the hot dimmer. When heat is present, energy is used.![]()
The more heat at the dimmer, the lower the percentage of the total energy used that will go towards producing light, but less total energy will be used. Same with a smaller bulb.