At 02:54 PM 5/20/2006 -0700, you wrote:

>On May 20, 2006, at 9:02 AM, Harold Hallikainen wrote:
>
> > It sounds like you've got a "wall wart" transformer running the lamp.
> > These are well known for their inefficiency and standby power
> > requirements. As such, they are about to be outlawed in California. I
> > think the simplest solution to the problem is to buy a new high
> > efficiency
> > wall wart, which is generally a wall mounted switching power supply.
>
>Are switching wall-warts really that much more efficient in standby
>mode than linear supplies?  Are they much more efficient than linear
>supplies at the sort of standard currents such things provide (less
>than 500mA)?  Or is this just another one of california's sillier
>laws?

The limits are numerical, not related to technology, but they effectively
outlaw sale of the typical cheap linear wall-warts. Does that answer your
question?

http://www.energy.ca.gov/2005publications/CEC-400-2005-012/CEC-400-2005-012.PDF

See page 119.

They figure the measures, over time, will eliminate the need for several
new power plants.

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->>Test equipment, parts OLED displys http://search.ebay.com/_W0QQsassZspeff


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