Finally fit a supply input socket and, optionally an on/off switch at the rear/side of the enclosure. WARNING! Great care should be taken when working with this led night lamp circuit since it is ...

The aquarium led light circuit uses LDR as light sensor for automatic switching of the circuit. During day time LDR has very low resistance so that IC1 remains stand by. In the night, LDR offers high ...

This circuit is ... xenon strobe lights did not work because they take up too much space, and the light they emit is too intense. It shows the main-clock input; the delay and duration potentiometers, ...