Cutting and soldering torches with piezo ignition

Piezo ignition

— the presence of a piezo ignition system in the device.

The principle of operation of such a system is that the mechanical energy from pressing a button is converted into electrical energy to create a spark that ignites the fuel. In fact, a piezoelectric element is a miniature generator; batteries or other power sources are not needed for the operation of such a system, which is its main convenience.