2 Lamps, 2 switchs, 1 wire

When you have a pair of N and L wires and want to turn ON-OFF two lamps SEPARATELY, you have to add third wire, adding third wire for second lamp on the workbench is easy, but that is very hard or impossible if your wires are inside the wall.
This is a very very simple idea for solving a big problem. you just have to using 4 diodes.
First 2 diodes are responsible of running first lamp and another 2 diodes responsible of running second lamp.
In following video i used 3A diodes(1N5408), but 1A diodes such as 1N4007 are enough.

2 Lamps, 2 switchs, 1 wire
2 Lamps, 2 switchs, 1 wire
Since diodes run the load just in half AC cycle so the lamp give half luminescence because it will consumed half power,

2 Lamps, 2 switchs, 1 wire


for this reason we have to add an capacitor parallel with the load(Lamp) as you can see in following pic.

2 Lamps, 2 switchs, 1 wire

2 Lamps, 2 switchs, 1 wire

After adding the capacitor this problem solved, following fig. shown the power consumption of 100W lamp before using capacitor(in left) and after using the capacitor(in right) in this circuit.

2 Lamps, 2 switchs, 1 wire





Location: Iraq

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