| Re: Do not feed the Dinosaur!
Bill Baka wrote:
> Eeyore wrote:
> > donquijote1954 wrote:
> >
> >> A typical 25 watt fluorescent light
> >> bulb, which replaces a 100 watt incandescent bulb, will last 8 hours
> >> on 200 watts worth of power. LEDs (light emitting diodes) are even
> >> more efficient and will last days on 200 watts worth of power."
> >
> > No, LEDs are *not* more efficient.
> >
> > Nor will most humans be able to generate a continuous 200W. That's 1/4 horse power FFS !
> >
> > If that's their sales spiel then I don't think much of them.
> >
> > Graham
>
> LEDs are better than incandescent lights,
What do you mean by better ?
> maybe on par with fluorescents,
Their efficiency in lumens / watt is currently typically no better than 50% of that of CFLs.
> and don't need a minimum voltage to run the electronic ballasts.
In exactly what way don't they ?
> I think 100 watts would be the output for an average person
> and even that might be pushing it for a person in a developing country
> who may not have enough good nutrition. At 100 watts, solar panels start
> to be a major investment and don't work too good at night or on hazy
> overcast days.
I don't rate solar panels as an intelligent solution to today's energy issues either for ppl
who live on-grid.
Graham
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