First, remove the outer frame of the switch or socket and pinch it. If it does not break, it indicates that it is a good PC material. This kind of material insulation and anti-aging are better, and the intuitive feeling is that such material is not Will be yellow.
Second, the switch socket must be screwed to its base to be fixed to the wall. The firmness of this base will also affect the use of the switch panel. Now some brands use the cold rolled steel to make this base, which will be more durable.
Third, the quality of the switch socket module is the most critical, it can be difficult to distinguish from the naked eye, in fact, we can judge through some details, the first generally the better the quality of the Shen will be better, in addition to the switch socket has a fixed thread head screws, good Should be pure copper, and relatively large, and some of the switch socket screws are copper or small, which shows that its quality is not very good.
Fourth, the socket should be purchased with security protection, its jack inside the block, is to insert two holes together to plug in, you can find a piece of iron to try, single plug a hole, should not be inserted Go in.
1. Look at the appearance
The style and color of the switch should match the overall style of the room. For example, if the overall color of the interior decoration is light, then black, brown, and other dark switches should not be used.
2. To feel
Most of the good quality switches are made of high-grade materials such as ballistic rubber. The fireproof performance, moisture resistance, and impact resistance are all relatively high. The surface is smooth. You should consider the feel of your own touch when you buy, and determine the material of the switch based on the feel of the switch. And ask the dealer. In general, products whose surface is not smooth and which have a thin, brittle feel are unreliable. The panel of a good switch socket requires no air bubbles, scratches, or smudges. The touch of the switch is light but not tight, and the socket of the socket needs to be equipped with a protective door. The plug must be plugged and unplugged to a certain degree of force and cannot be inserted on one foot.
3. Look at the amount
When purchasing a switch, you should also weigh the components of a single switch. Because only the copper thickness inside the switch, the weight of a single switch will be large, and the inside of the copper is the most critical part of the switch, if the alloy or thin copper will not have the same weight and quality.
4. Look at the brand
Encourage everyone to use well-known brands. Because the quality of the switch is related to the normal use of electrical appliances, and even the convenience of living. Many dealers in the interview have expressed the same view, that is, many small manufacturers switch or socket is not reliable, it simply does not take long, and often change is obviously very troublesome; but most well-known brands will be to consumers Make effective commitments, such as "available 15 years", "guarantee 12 years of service life", "can be continuously switched 10,000 times" and so on.
5. See service
As far as possible to the regular factory designated store or point of sale to purchase, and ask for a shopping invoice, so as to ensure that you can enjoy future service.
6. Look at the logo
Pay attention to the identification on the base of switches and sockets: including ccee, rated current and voltage.
7. Look at the packaging
There should be a clear manufacturer's address phone number on the packaging surface, with instructions and certificates
Universal switch
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