What's wrong with the easy come lynch switch release to extinguish the lights

Linking switch is a no-brainer IQ tax. The most emerging control technology, a linchpin switch can easily be 40-60 dollars, the so-called single-fire version of the smart switch, is the switch and lamps in series in the circuit, because the smart switch is required to use electricity, if you use the traditional sense of the disconnect, the smart switch will also be disconnected so that the smart switch can not work.