This portable spot welder runs on 120 volt household current
This portable, air-cooled spot welder makes quick, strong spot welds without having to install a 240 volt outlet. Welds uncoated mild, galvanized or stainless sheet steel to 1/8 in. combined thickness (mild steel), two pieces of 20 gauge (galvanized). The spot welder has 6 in. tongs lock firmly onto materials.