What wall switch production of raw materials exactly? The best copper wall switch is phosphor bronze, high strength phosphor bronze, plug-resistant, strong resistance lasting. Is Lintong there are two steps you can know. First, with the magnet suck, you suck live if air conditioning wall switches, copper, but this step can not be separated is not phosphor bronze. Second, hand bend it, see if there is flexibility, strength how. If the elastic wall switch good idea, clip together tight, high strength, it is phosphor bronze. Brass: more than phosphor bronze, followed by intensity difference. Now there are a lot of switching is brass, phosphor copper prices lower than some. Many OEM manufacturers to switch Floury very good, very beautiful, in fact, a surface, copper is not only used inside the brass, and the width can not be achieved, selling is a side wall switches, wall switches and low prices made the neglect of quality, talk about face, the worst point of contact with copper. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. How to check whether the lamp failure is a wall switch failure first step: an older release fixing screws and remove the wires, and then connect the wires to the new switch corresponding screws. Repeat these steps for the remaining wires. Carefully connect the wires, so that all the bare safely situated underneath the screw head. Then cut off all the excess wire insulation removed. Simple "on / off" switch or three steps to the same switch, but the operation which must be more careful with the manufacturer of your new switch wiring schematic on the package by comparing test wiring. Step 2: If the installation of modern compact linear wall switch, cut the end of each wire, leaving only about 1.3 cm of bare wire. The exposed end of each wire into each hole tight line, and then pull the wire to check if they are completely clamped by light. Need to remind you that if the access junction box wires or insulation are easily damaged or worn, you deal with that part of the circuit for specialized rewiring. If a wall switch using the normal, you can check whether the lamp problem. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. Wall Switch | Vicki appliances | Combination wall switch provided by the Hebei Tianyi Electric Co. Wall Switch | Vicki appliances | Combination wall switch is Hebei Tianyi Electric Co., Ltd. (www.tianyidq.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest Information, Contact: Manager Li.