Re: Anyone moved to LED Lighting?

["Josepi" <JRM@xxxxxxxxxxxx>]

Yeah, but he is referring to the three phase CFL lamps. He appears to know
all about those too.


"The Daring Dufas" <the-daring-dufas@xxxxxxxxxxxxxx> wrote in message
news:hhjokd$275$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
They are? I didn't know that. I must search The Interweb for information
unless you could please point me in the right direction. If I don't
stand corrected, I'm not learning anything. 8-)

TDD


Don Klipstein wrote:
> In article <hhi9g8$14k$1@xxxxxxxxxxxxxxxxxxxxxxxxxx>, The Daring Dufas
> wrote:
>> Dave Houston wrote:
>>> The Daring Dufas <the-daring-dufas@xxxxxxxxxxxxxx> wrote:
>>>
>>>> CFL units also
>>>> use switching power supplies to operate the lamp and a wholesale change
>>>> over to CFL lighting could cause problems in older buildings.
>>> I'm not sure how much of a problem this will be. Most
>>> commercial/industrial
>>> buildings use tubular fluorescents and/or high pressure sodium lights
>>> which
>>> save far more energy than CFLs so there's no incentive (nor mandate) to
>>> switch to CFLs. (Changing from magnetic to electronic ballasts may be a
>>> problem but I don't know how prevalent this is.)
>>>
>>> As lighting is only 9% of residential energy use, even changing to 100%
>>> CFL/LED with SMPS may not be a major problem. Electic rates already
>>> embed
>>> charges for residential power factor issues (rather than use demand
>>> metering). It's likely that the utilities will merely ask for rate
>>> increases
>>> to compensate for their increased costs related to harmonics.
>> I was thinking more along the lines of older apartment buildings in
>> large cities, especially very old ones. The building may have its
>> own transformer in the basement and if it was never updated since
>> the 1920's or 1930's, there could be some problems caused by the
>> asymmetrical loads.
>
>   CFLs are symmetric loads.
>
>  - Don Klipstein (don@xxxxxxxxx)