Smart Trailing Socket

Parts:

R1,R2_________100R 1/2W Resistors

C1____________100nF 630V Polyester Capacitor

D1 to D6_____1N5408 1000V 3A Diodes (See Notes)
D7__________TIC225M 600V 8A Sensitive Gate Triac (See Notes)

A commercial trailing socket to be modified or a self-made box with several sockets.