This system has the ability to weld with iron steel, stainless steel, copper silicium and aluminum 95% – magnesium 5% by only changing the wire spool. For the use of aluminum silicium 3/5/12%, a special spool gun is available.The input voltage is 200, open circuit voltage is 60, ampere 15 and Hz 50/60. It’s also lightweight at 9.3 Kg. Call (702) 702-716-4803, e-mail jfishlee@cox.net or visit www.usaspotwelding.com.