Walt, they want 20 to 30 dollars for the 6 volt solar panel, but the 4 AA batteries which total 6 volts are suppose to work up to 4 months, so I think the solar panel is unnecessary since AA's are cheap and I'll replace them every month.
There's a plug in port in the side of the unit for the solar connection, it's visible in the first photo.
Last edited by adirondack pond; 07/31/09 02:43 PM.
