Efficient cooling and safety features: Equipped with smart chip control and a 360 cooling design, this welder effectively manages temperature during extended operations. Improved starting capability: With a hot start function that enhances ignition, this welder ensures reliable performance. The closed-loop feedback control maintains stable voltage output Compact and lightweight design: Measuring 9.8 x 9.45 inches and weighing only 3.3 lbs, this portable welding machine is designed for easy transport and convenient storage. Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours Versatile adjustable current settings: Featuring a welding output range of 20-120A with six adjustable levels, this welder accommodates a variety of tasks.