>> The OPs 'low-power' requirements are in significant conflict with
>> illuminating 6 to 12 LEDs.
>
>That was my first observation. The only way it could have been worse
>is specifying a 9V battery for the power source.

<VBG> so the OP could add some switching regulator experience as well - but
then I am not sure if a 9V battery has a better watts/cubic cm than AA
cells.

>One aside on my other post: my sunrise/sunset light controller
>drifts too. I usually have to reset it at least once a month.

Sounds like time to add a radio clock - or have a photo cell that detects
the daylight time and sets midnight to the midpoint between sunrise and
sunset each night. Don't know if that would be accurate enough - maybe in
very low rainfall/cloud cover areas.

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