Posted by NunYa Bidness on 10/24/05 17:45

On Mon, 24 Oct 2005 08:10:59 -0700, <normanstrong@comcast.net> Gave
us:

>
>He said they turned the "lamp power down". He said nothing about the
>voltage.

Now, you are an electrical retard as well, eh?

The manner in which one reduces the brightness of a bulb IS by
reducing voltage, dumbass. The bulb's POWER is determined by the
voltage across the filament.

> Is there any reason to think that the "lamp" is an incandescent
>bulb? It might be a xenon arc lamp run with a current pulse. The length of
>the pulse is proportional to the light output as well as the power.

Can you really be that stupid? Why would they make a design that
has flicker in it?

Xenon arc lamps (or any other plasma type lamp) give out the same
light all the time. There is no reduced brightness mode made by
changing the duty cycle of the pulse fed to them. They are DC
devices, dolt. The ionized gas has to be passing current at all times
and in one direction, so there will be no zero crossing AC voltage on
them, and there will be no pulsed feeds to them either.

Once the plasma has been established, the brightness is constant.
In order to keep the plasma up, it has to be on all the time. Also,
such lamps operate at very low voltages once they plasma has been
established. It is, after all, a very low impedance load. Nearly
zero ohms.

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