At dusk this circuit triggers a relay switching lamps. The circuit can be powered from 6 to 12 V supplies according the relay voltage. Any phototransistor can be used and sensvity is adjusted by P1.
![](/images/sampledata/cb/cb896_0001.gif)
At dusk this circuit triggers a relay switching lamps. The circuit can be powered from 6 to 12 V supplies according the relay voltage. Any phototransistor can be used and sensvity is adjusted by P1.