1. Look at the appearance.
The style and grade of the switch should match the overall style of the room. In addition, the white switch is the mainstream, most of the interior decoration of the overall color is light, you should not choose black, brown and other dark-colored switch.
2. By feel.
Good-quality switches are mostly made of bullet-proof rubber and other high-level materials, fire performance, moisture resistance, anti-impact performance are higher, the surface is smooth, you should consider the purchase of their own feel, by virtue of the feel of the initial determination of the switch's material, and ask the dealer. Generally speaking, the surface is not too smooth, touch a thin, brittle feeling of the product, the performance is not trustworthy. Good switch and socket panel requires no bubbles, no scratches, no stains. Switch toggle feel light and not tight, socket jacks need to be equipped with a protective door, plug plug should require a certain degree of force and a single foot can not be inserted.
3. Weight.
Buy switch should also weigh the weight of a single switch. Because only the switch inside the copper thick, the weight of a single switch will be heavy, and inside 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. Choose the brand.
It is best to choose a well-known brand. Because the quality of the switch is related to the normal use of electrical appliances, and even the convenience of life. Many small manufacturers of switches and sometimes sockets are very unreliable, can not be used for a long time, and often replace the obvious is very troublesome; but most of the well-known brands will be effective commitment to consumers, such as "guarantee 12 years of service life", "can be 10000 times a continuous switch" and so on.
5. Choose service.
As far as possible to the regular manufacturers designated stores or sales outlets to buy, and to retain the shopping vouchers, so as to ensure that you can enjoy the future after-sales service.
6. Marked.
To pay attention to the switches, sockets on the base of the logo: such as the national mandatory product certification (CCC), rated current and voltage values; product model, date and so on.
7. The whole package.
Product packaging is complete, there should be a clear manufacturer's address and phone number, there are instructions and certificates.