Re: [APD] Lighting

["S. Hieber" <shieber at yahoo_com>]

LEDs are more energy efficient than incandescent bulbs, so,
yes, batteries will last longer using LEDs than
incandescent bulbs with comparable light output, but not as
long as ones using fluorescent bulbs.

sh

--- urville <urville at peoplepc_com> wrote:

> well i assumed since you could run an led flashlight for
> a lot longer on 
> the same batteries just for one example and get quite
> bright lighting 
> they were more efficient... of course again i'm not
> talking about for 
> plants... i dont think we are there yet.
> am i wrong in this, it seemed common sense to me
> 
> S. Hieber wrote:
> 
> >Actually, no, LEDs are not. The really bright ones are a
> >bit less energy efficient than good fluorescents and
> >actually depend on fluoresence to emit light.
> >
> >The highest energy efficency of lighting lamps belongs
> to
> >certain of the mercury-vapor gas lamps. Not the MH ones
> >that one might use on an aquarium but ones with output
> in a
> >very narrow band of the spectrum. They are suitable for
> >special purposes and some have energy efficiency over
> 80%.
> >The ones suitable for aquaria have about the same energy
> >efficiency as fluorescents, roughly 35%.
> >
> >sh
> >
> >--- urville <urville at peoplepc_com> wrote:
> >
> >  
> >
> >>i believe LED's are the most effeicient lighitng
> >>as to how available they are in anything that does us
> >>anygood i dont know
> >>
> >>Jerry Baker wrote:
> >>
> >>    
> >>
> >>>They don't even cost more hardly anymore. I see
> 4-packs
> >>>      
> >>>
> >>for $8 all the 
> >>    
> >>
> >>>time in Home Depot.
> >>>
> >>> 
> >>>
> >>>      
> >>>
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> >>    
> >>
> >
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> >  
> >
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