The Omada Heavy Duty Inverter ARC Welding Machine with Hot Start, Anti-Stick Functions, and Arc Force Control is a versatile machine that can be widely used in both acid and basic electrode welding. With its small size and light weight, this welding machine is easy to transport and store. It's a great choice for those who need a reliable and high-quality welding machine that won't take up too much space, thanks to its portable DC inverter welding machines feature.