On 2015-10-23, John Hasler <jhas...@newsguy.com> wrote: > Lisi writes: >> And CFL surely? If turned on and off too frequently too close >> together - anyhow the older ones? I don't like them, so haven't used >> them much. > > The life of a CFL is pretty much unrelated to how often it is turned on > and off.
http://energy.gov/energysaver/when-turn-your-lights The operating life of CFLs is more affected by the number of times they are switched on and off. You can generally extend the life of a CFL bulb more by switching it on and off less frequently than if you simply use it less.
