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This post was last edited by It will be more tomorrow_bZzMU on 2020-2-2 at 12:58. With the advent of the intelligent era, people are increasingly dissatisfied with traditional switches, which led to the emergence of dual-control switches. Although it is a building material that every household needs, very few people know how to use it. So today, the editor will introduce some knowledge on this topic. Below are several wiring diagrams for dual-control switches, as shown in Figure 1. There are several ways to connect dual-control switches: a) In connection method one, it is necessary to ensure that there is a wire connecting the middle part of the two dual-control switches; another wire should be able to connect to either the upper or lower wiring ends of those switches. At the same time, there must also be a wire in the area where the light is located that connects to the middle of that wire, with another wire connecting to the neutral wire. It should be noted that when wiring, it is essential to take a branch cable from the middle of the twin cable, and the live wire should be connected to the two 220V switches. http://www.weijizongbao.com/d/file/17399ae4041f5741ae1b512e3588f694.jpgb. Method 2: Those who have studied physics should be familiar with this; it is a very common, standard textbook-style wiring method for dual-control switches. When carrying out the wiring, one only needs to follow the diagrams provided. http://www.weijizongbao.com/d/file/d0a2cb94df5503f1578e7d45ea08bd71.jpgc. Connection method 3: Compared to the above two methods, this is an alternative connection method used by homeowners with limited financial resources in order to save costs. The specific procedure is to first take one wire from each of the middle sections of the dual-control switch in order to connect the lights that need to be controlled, and then connect the terminals corresponding to the switches to the neutral and live wires respectively. Although this method is simple, it poses significant security risks; therefore, it is recommended to use it with caution. http://www.weijizongbao.com/d/file/fff1a745af16b8d9b126c4e24009b7f4.jpg 2. The general procedure for connecting a double-control switch: a. Identify the appropriate wiring terminals. Generally, all double-control switches have corresponding markings, usually starting with “L”. Therefore, it is important to find these terminals correctly when installing the switch; for example, the L terminal corresponds to either L1 or L2. After pressing the button, connect the other end to L. b. After leaving a certain length of wire end, use diagonal pliers to remove the outer skin. c. Connect the live wires, locate the L1 and L2 terminals that correspond to them, then connect the opposite-end of L to one end of the light bulb, and the other end to the neutral wire. d. Completely wrap the insulating tape that was purchased earlier around all wire ends to prevent safety hazards such as electric leakage. e. Locate the neutral and live wires and connect plugs to them; thus, the wiring for this type of switch is complete. Editor’s conclusion: That’s all for this article, which has covered the wiring methods and procedures for dual-control switches. If you happen to have a need for this, it’s advisable to carefully study the instructions provided in this article before proceeding with the wiring, or to enlist the help of a professional to avoid any safety incidents.