... welding gun 1.CE Certificate 2.temperature 50~550C. 3.700W, 110Vac/220Vac 4.Air volume: 50-300L/Min TGK-700A hot air welding gun ... Features:1, Cold/hot air,2, Adjustable temperature.3, Long life service4 ... °C50~300L/min600gStandard accessory: 2pcs of nozzleStandard accessory: 1pc of heater TGK-700A hot air welding gun