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, ...

This colorful back led aquarium lights gives natural appearance to the Aquarium tank. The Aquarium Led Lighting circuit automatically turns on at sunset and gives changing White, Blue and Green color ...

The circuit works this way: when switch S1 is closed, the capacitor C1 is slowly charged. Once the voltage at C1 reaches 0.6, transistor T1 begins to conduct and the LED also begins to light. If the ...