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, wall switch cover, you with the new switch manufacturer wiring schematic on the package by comparing test wiring. Step 2: If the installation of modern compact linear wall switch, tap 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, wall switches shop, 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 domestic and foreign market has been a wall switch panel market, there is clearly divided into two camps: foreign manufacturers have the absolute right to speak at the high-end market, domestic manufacturers in the low-end market, a comparative advantage. However, domestic manufacturers occupy the low-end market, foreign manufacturers of high-end market segmentation dividing line is beginning to blur. On the one hand, foreign manufacturers to accelerate the localization process is relatively limited prompting them to speed up the market to a wider range of high-end market space attack; the other hand, the share of foreign manufacturers of high-end market and the desire to have prompted domestic manufacturers They attack from low to high, want to be able to show their fist on the high-end market. Foreign firms often have a long history, advanced management experience, strong technical force and financial strength of the new product development cycle is shorter, market responsive. Their entry, wall switches, although domestic manufacturers in terms of technology, capital, services, resulting in a strong pressure, but also for domestic manufacturers to bring the international advanced production and management technology, and a new sense of service, so as to promote improve the technical level of the industry's products. Compared with foreign manufacturers, the current prevalence of domestic panel makers switch design and manufacturing process is relatively backward, lack of special equipment, the production poor reproducibility, reliability is not high; a large number of small artisanal switch socket manufacturers flooding the market, not only greatly hindered the healthy development of the industry, but also seriously infringed upon the interests of consumers. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. Vicki electrical wall switch _ _ Tap the wall switch provided by the Hebei Tianyi Electric Co. Hebei Tianyi Electric Co., Ltd. (www.tianyidq.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!