Last winter we had three or four power outages in our village, so I decided to have a look at the possibility of constructing a small back-up system in the event of power cuts.
I decided to have the system operating only during the winter months, this meant that it would not be on standby all the time. I regulated the hours by using a standard mains operated programmer that incorporated a battery back-up. I limited the hours to between 1600 and 2300 hours. If there was a power failure in that period, then the 12 Volt LED light would come on, depending on the sensitivity of the light sensor. It works, but is not too complicated or over-sophisticated.
Regards
Alex Henderson M0TOT
