The new generation and cost-effective ARC 270D Economical, Excellent, Affordable, Portable, Light weight © Equipped with RILAND self-developed RICHIP chip and use the latest high grade IGBT technology. © Double voltage: 220V/415V±15%. © LED Display shows the welding current. © Adopt intelligent MCU control with high reliability, built-in power management system. © Built-in anti-stick feature prevents overload and enables effortless electrode removal.  © This unit features an output reactor, enabling welding with acidic and basic electrodes. © Continuous welding capabilities with electrodes ranging from 2.5 mm - 4.0 mm