The switch has dual control and single control of difference, dual control each unit more than a single control terminal. A light in the room can be controlled wall switch socket factory, outside the room can also be referred to as a dual-control control, dual-control switch can be used when single control, but not for single control switch dual control. 1, classified according to the switch to start the switch to points mode: pull switch, rotary switch, pull down the switch, button switch, rocker switch touch switch, reset switch, tap switches 2, commonly switch connection classification according to press the switch. Connection to the point: single control switch, dual-control switch, bipolar (dual) dual-control switch. 3. Press the Size by Size Score: 86, 118 type, 120 geographical distribution: Most domestic use 86 switch (80% of the area) wall switches and sockets, some parts of it with 118, 120, less. Wall switch as people focus on the home environment becomes more than a variety of lighting 1. Switch: several switches side by side, each controlling their own lights. Often said: double, triple, or an open, four open and so on. 2. The dual-control switch: the two switches in different locations can be controlled in the same light well wall switches and sockets, as explained in the stairs, halls, bed and so on, to be pre-wired. 3. Luminous switch: fluorescent lights with a switch or dim light, easy to find location at night. Special note: This switch drawback is:.. A light switch is more expensive, and fluorescent lamps, ceiling lamps when used in conjunction with high-quality wall switch socket, there will be lights flicker; b fluorescence by reflected light, a few years later will be more dark. 4. dimmer switch: You can switch and light intensity can be adjusted by the knob. Note: Can not be used in conjunction with energy-saving lamps. Above Hebei Extension of communication Power Equipment Manufacturing Co., Ltd. to offer hope to the industry to help a friend. Wall switch socket wall switch socket specifications _ _ provided by Tianyi Electric Appliance Co., Ltd. Hebei Tianyi. Hebei Tianyi Electric Co., Ltd. (www.tianyidq.com) strong, credible, in Xingtai wall switch industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Tianyi Electric into the brilliant and you work for a better future!