Portable Power source Inverter, with a supply voltage of 230Vac single-phase, usable for lots of welding's modes such as TIG DC, Pulsed TIG DC, TIG DC Mix Arc, with an arc starting reached through a HF device.This machine is perfect for a “TIG Arc” welding on all types of steel, alloys of copper and titanium, and for the welding process with MMA Stick electrode.With its very simple adjustment, in every single pro-cess, the machine allows to reach, in a very simple way, high quality results. The Tig Puls mode, adjustable up to 1000Hz, permits always an optimal adjustment of the welding arc's layout.This device, protected by a solid but lightweight plastic shock absorbent cover, has functional back-lighted LCD display for a clear visualisation of all the welding para-meters. Through a practical and simple operator interfa-ce, is possible to realize all the typical required settings, for a professional TIG welding power source, like for example the possibility to choose between different torch switch cycles, with or without initial and final slopes. Be-sides, thanks to its special 'Click' function, if you use a “4T with slope” cycle, it will be possible to weld with two different levels of current intensity. The switching between a level and the other one is achievable through a simple and rapid touch on the torch switch; so it will be possible, without turning off the arc, to reduce the current intensity when you desire it, and then, later, return to the initial current intensity through a new rapid touch on the same torch switch