On 01/25/2013 12:59 PM, = wrote:
> "Joe Mastroianni" <
j...@coohoo.com> wrote in message
> news:kdu78a$4nt$2...@dont-email.me...
>> On Fri, 25 Jan 2013 09:48:16 -0500, Tomsic wrote:
>>
>>> They're in an "exempt" category which includes decorative,
>>> colored and other types which are not widely used.
>>
>> Makes sense.
>>
>>> Bulb choices for consumers actually increased in 2012.
>>
>> Doesn't make sense.
>>
>> How did removing bulb choices increase bulb choices?
>
>
> Well in the case of the 100 watt bulb during 2012, the 100 watt was replaced
> by the 72 watt. It's more efficient and gives about the same amount of
> light, costs about the same and is rated to last for 1,000 hours, so that's
> one choice.
>
> Another choice is the so-called "2X" bulb that a company called ADLT
> announced. It gives the same light output as the old 100 watt, but draws
> only 50 watts and is rated for 1500 hours. That's an additional choice that
> we didn't have before.
>
> Then there are the screw-in CFLs, usually rated for about 26 watts. The
> prices have come down significantly on those and some are also rated for
> more light output than the old 100 watt. But it's a 3rd. choice because the
> types shaped like the old standard bulbs just appeared last year.
>
> Finally, about mid-2012, the major lamp companies introduced LED equivalents
> to the 100 watt also rated about 26 watts. That's a 4th. choice.
>
> So, what I see on retailer shelves is that the old 100 watt bulb can now be
> replaced by 3 or 4 alternatives depending upon what you want -- long life,
> low initial cost, efficiency, color, dimability, etc. The "2X" isn't in
> wide distribution yet; but the others are.
>
> One bulb disappeared and 3-4 alternatives with various performance options
> are now on the shelves with the same thing already happening for the 75 watt
> that's being phased out now except that the alternatives are cheaper and
> more available.
>
> What doesn't seem to make sense is why some people bought stocks of the old
> 100 watt bulbs and are hoarding them.
>
> Tomsic
>
>
>
>
>
>
The problem I have with some of the new alternatives (e.g. CFL, LED) is
that they don't respond well to the use of conventional dimmers. A 100
watt bulb might be used full-on a small fraction of the time (i.e.
usually dimmed) and hence use much less than 100 watts on average.
Replacing it with a non-dimmable alternative might actually use a
comparable amount of energy, or even in rare instances more energy, with
less flexibility.
We have a mix of lighting technologies in our house -- old fashioned
incandescent, halogen, fluorescent tube, CFL, LED, and even neon -- each
chosen for its particular attributes of light output, energy
consumption, dimmability, color, configuration and mood.