Selection of switch socket for rechargeable desk lamp *

1, look at the shell material first.

The main switch brands in the market generally choose PC material, which is the so-called bulletproof glue. The characteristics of impact resistance, high temperature resistance and difficult discoloration are very important for controlling electrical switches.

2. Secondly, look at the contact point, which is the contact point of the conductive part in the switching process.

Contact depends on size (bigger is better) and material.

At present, there are mainly three kinds of contacts, silver-nickel alloy, silver-cadmium alloy and pure silver.

Silver-nickel alloy is an ideal contact material at present, which has good conductivity and hardness and is not easy to oxidize and rust.

3. Third, look at the structure.

At present, it is mainly a large panel type, and its appearance and feel are better than the previous thumb type.

4. In addition, the power of household appliances is getting bigger and bigger, and the current load of switches is also higher, especially at the moment when the appliances are electrified (many inferior switches are burned out by high current at the moment of electrification).