In article , Harry Bloomfield
writes

Ideally what you need is a 4.5v DC regulated output wallwart, then just
turn it on when you want the light on. One of the general purpose ones
designed to power battery powered devices with a (3, 4.5, 6v etc.)
voltage switched output should do

Bung a 7805 in the output and a diode in series with the output to drop
the voltage to 4.4v?

--
(\__/) Bunny says NO to Windows Vista!
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(")_(") http://www.cs.auckland.ac.nz/~pgut00...ista_cost.html
http://www.schneier.com/crypto-gram-0702.html#8
http://www.theinquirer.net/default.aspx?article=39051
http://www.theinquirer.net/default.aspx?article=39087
http://www.theinquirer.net/default.aspx?article=38926
http://www.theinquirer.net/default.aspx?article=37091
http://www.theinquirer.net/default.aspx?article=36653
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