2% Lanthanated (Blue) Ewla-2 (Principle Oxide: 1.8-2.2% Lanthanum Oxide). Good For Use In Both Alternating Current (A/C) Or Direct Current (D/C) Applications Using Inverter Or Transformer Based Constant Current Power Sources. Excellent Arc Starting, Low Burn Rate, Good Arc Stability (Even At Lower Voltages), Excellent Re-Ignition And Extends Higher Operating Current Range. Ideal For Steel, Stainless Steels, Low Alloyed Steels, Aluminum Alloys, Magnesium Alloys, Titanium Alloys, Copper Alloys And Nickel Alloys.