This light chaser circuit (music-operated lighting effect generator) comprises five sets of 60W bulbs that are arranged in zig-zag fashion. The bulb sets glow one after another depending on the ...

This backup light circuit guarantees the fact that if Lamp 1 burns out then Lamp 2 will light up. But remember to replace the Lamp 1 or else this circuit won’t work again when Lamp 2 is burned out.

Scientists have created a circuit that can power itself, as long as it's left in a beam of sunshine. Created by scientists from the University of Pennsylvania, the world's first photovoltaic circuit ...

Light flicker inside a building is usually associated with loose wiring, faulty switches, or poor electrical connections. But there are many situations in which lights flicker even when the ...