Resistance type bulbs will run on DC just fine..and last longer as DC
eliminates filament wiggle from rapid heating and cooling while AC changes
phases.
[Put on a pair of dark sunglasses and watch an unfrosted light bulb to
see it.]
You'll need something like a 5 amp/ 200 volt rectifier bridge.
Due to a steady state voltage, a 300 watt bulb might draw a few more watts
and output a bit more light running on DC???
Ode
At 04:30 PM 3/15/2006 +0005, you wrote:
I asked:
> > One question worth asking is what kind of electromagnetic field do
> > they generate? If I put myself in a box with a bunch of these, how bad
> > is the bombardment?
>
> They generate far infrared.
I'm thinking more about the 60 hz line power that's being fed through
the filaments to *make* them generate far infrared. Unless the elements
are wound in a way to neutralize magnetic fields, an alternating 60 hz
magnetic field will be generated. Any higher frequency noise on the
line will also be superimposed on the magnetic field... thus my
question about electromagnetic fields...
Mike D.
[Mike Devour, Citizen, Patriot, Libertarian]
[mdev...@eskimo.com ]
[Speaking only for myself... ]
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