Knowledge of touch switch selection
Pay attention to the lamps that can be used by the switch when buying the touch switch
At the moment, a lot of companies are developing touch switches that don't work for all lights, and I've seen a lot of touch switches that don't work for fluorescent lights. So before you buy, you have to know what switch you're buying: "what lamp can you use? What wattage lamp? What's the load?" Be sure to ask about these points, if they are not clear about the consequences of incorrect use is very serious:
1. The light is flashing, it doesn't even light
2. Switch burning circuit, smoke.
So you must ask before you buy. At present, many of the touch switches on the market are not capable of using LED/ CFLS of about 5-15 watts, fluorescent lamps (commonly known as fluorescent tubes), or lamps or electrical appliances of more than 1000 watts.
Two, pay attention to the wiring mode of touch switch
This involves the wiring mode of decoration. If you do not understand this, you will not be able to use the wrong touch switch. According to the wiring mode, the touch switch is divided into two types: zero wire and single wire.
Among them home outfit often USES is the electric wire layout of single fire line, what work equipment USES is the electric wire layout of zero fire line. Single wire and zero wire are suitable for different occasions and various USES. But for touch switches, single wire switches and zero wire switches are not compatible.
http://www.hkram.com/sensor-switch/touch-sensor-switch/mirror-touch-sensor-switch.html