Date: Mon, 17 Oct 2005 09:48:09 -0700

Author: Tom Kramer

Subject: Re: Power supplies


Halogen bulbs are not usually found in light boxes, I used the
halogen power supplies as the power source for light boxes because
they are relatively cheap transformers that output the right voltage
with enough current. I found that high frequency transformers were
available which could be controlled by a standard inexpensive dimmer
switch. This meant that the light box could be set to some level less
then full on and have a gentle startup and shutdown, all of which
would extend the bulb life.

On Oct 15, 2005, at 9:47 AM, Chuck Britton wrote:

> Keep in mind that halogen bulbs really don't like to be dimmed.
> Full on or off will give their maximum lifetime.
> At 4:40 PM -0700 10/14/05, Marc \"Zeke\" Kossover wrote:
>> First, I bought two halogen lamp controllers
>> .......... It works beautifully. It was mentioned that
>> it would work with a standard dimmer,
From Mon Oct 17 14:49:45 2005