All Sealey Supermig models are suitable for welding with CO2, Argon or CO2/Argon mix. Each uses a Forced Air Cooling System to slow transformer heating in order to increase duty cycle. A non-live torch is fitted to prevent the risk of accidentally striking an arc. Model No. SUPERMIG150 and above are supplied with an industrial Argon/CO2 regulator. A contract for the supply of gas should be arranged with your local gas distributor.Please note: This welder is not supplied with a plug. If using welder to full capacity, it is recommended to use a 16amp supply. Please discuss the installation of a 16amp industrial round pin plug and socket with your electrician.Model No:SUPERMIG150Welding Current:30-150AWire Capacity:0.7-5kgDuty Cycle:100% @ 47A, 60% @ 60A, 20% @ 105ACooling System:Forced AirSpot Welding Timer:NoGas Type:CO2, Argon, CO2/Argon MixTorch:3mtr Non-LiveSupply:230VAbsorbed Power:4.1kWCase Size:CompactWeight:30kg