The 250A Inverter Welder is a completely digitally-controlled MMA power source with resonant intelligence. The ideal characteristic ensures a constantly stable arc, even with mains leads up to 100 metres long. Stability is also guaranteed with fluctuating mains voltages (340 to 506 V) and during generator-powered operation. The TransPocket 2500 welds all electrode types up to 5 mm, including the vertical-down welding of cellulose electrodes. It is extremely robust yet also small, light and portable.