Switch socket is a common household product, so we must choose a product with good material, which can be identified by combustion test. Products with good quality are not easy to burn and have good flame retardant effect. And inferior products are not only easy to burn, but also produce pungent smell.

Step 2 look at the feel

The switch with good quality has light touch, good elasticity and strong switching power; The switch spring with poor quality is soft, which will get stuck in the middle and break easily. A good socket has a protective door, one foot can't be inserted, and it takes a certain amount of force to insert it.

Step 3 look at the appearance

Usually, good switch surfaces are smooth and smooth, and they are all made of imported PC materials, which feel good. Inferior products have rough texture and poor flame retardancy, which are prone to fire hazards.

Step 4 look at the weight

When you buy a switch, you can also weigh it. Usually, switches with good quality are made of copper sheets, which are relatively heavy. If it is alloy or thin copper sheet, the quality is not as good as copper sheet.