[LINK] Blackle increases power use with small LCD monitors

[Kim Holburn]

On 2007/Nov/27, at 8:14 AM, Tom Worthington wrote:
> My large Dell monitor uses 51 W with an image and 7 W in standby  
> mode. I discovered that if I unplug the keyboard and mouse from the  
> USB hub built into the monitor, the standby power drops to less  
> than 1 Watt.

I use my Dell as a powered USB hub, with keyboard and mouse and  
headphones left plugged in.  If I didn't use the monitor I'd probably  
use a powered hub and it would have a wall wart.  This immediately  
got me to thinking: how much power do those little plug-in  
transformers actually draw?  I have quite a bit of stuff with them.   
Sometimes the equipment is off but the wall wart is still plugged  
in.  I imagine some of the newer very small switching power supplies,  
like phone chargers, use much less power when not in use but I don't  
have the equipment to test it.

Kim
--
Kim Holburn
IT Network & Security Consultant
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                           -- Lloyd Biggle, Jr. Analog, Apr 1961