Using this LaYZr Tungsten is easy. First, make sure you're using it with an inverter or transformer - based constant current power source for AC or DC currents in automated or robotic applications. It's suitable for a wide range of materials like low - alloyed steels and aluminum alloys. When handling, be careful as it's a precision item. Since it runs cooler and has a long life, you don't need to replace it often. Just keep it in a dry place to maintain its performance. Avoid using it outside the low - to - medium amperage range specified. If you notice any significant wear or damage, it's time to get a new one.