Any incorrect welding operations all possibly cause damage to plastic deformation, bad-contact switch ect. When soldering the pin terminals of switches and signal lamps, we should pay attention to the following points. Because it's easy to have the switch damaged if improper-operation.
1. Using suitable electric soldering iron and quickening welding speed. We suggest you use 30Welectric soldering iron and finish within 2 seconds when it reaches 320℃ .
2. Using right amount of scaling powder and putting the pin-terminals downwards when soldering.
3. It's better to use connectors than direct welding.