Based on my observations, this inverter welder is a must-have for any professional welder. It provides a stable arc with no spatter, making it easy to create precise welds on a variety of materials. The compact size and lightweight design make it portable and easy to move on job sites .The only downside is that it requires an external power source, but thats a small price to pay for its exceptional performance. Overall, this is an excellent choice for anyone in need of a portable welder that delivers consistent and reliable results..