| Model | Economical 60A | Durable 70A | Dependable 120A | Specialized 200A | 
                    
                      | Power | AC220V 300W | AC220V 350W | AC220W 600W | AC220W 1000W | 
                    
                      | Dimensions & weight | 39x27x39 cm 15kg | 47x27x39 cm 20kg | 47x27x39 cm 22kg | 47x27x39 cm 26kg | 
                    
                      | Gas flow | 35-40L/h 
                        self-controlled even flow | 75-80L/h 
                        self-controlled even flow | 180-200L/h 
                        self-controlled even flow | 250-280L/h 
                        self-controlled even flow | 
                    
                      | Torch & nozzles | 1 set of torch 
                        (with 5 nozzles) | 1-2 sets of 
                        torch (each with 5 nozzles) | 1-2 sets of 
                        torch (with an additional big nozzle) | 1-4 sets of 
                        torch (with an additional big nozzle) | 
                    
                      | Flame power | Comparatively 
                        weak, for common use | Comparatively 
                        strong, for all kinds of use | Comparatively 
                        strong, efficient | Strong, for 
                        intensive operation | 
                    
                      | Electrolyzing 
                        case | Single case, 3 
                        layers | Double case, 6 
                        layers seamless tube | Double case, 6 
                        layers seamless tube | Double case, 6 
                        layers seamless tube | 
                    
                      | Electrolyte | Prepare and add 
                        electrolyte at the first time of use. Change electrolyte 
                        when dirty or losing efficacy. | 
                    
                      | Consumed fuel | Water, from best 
                        to ordinary are: distilled water,purified water,cold 
                        boiled water, tap water and mineral water. | 
                    
                      | Addictive | A little 
                        ethanol, other addictive or nothing, according to 
                        different use. | 
                    
                      | Flame condition | Light blue, or 
                        blue / green with certain addictive. 1000-2800 degree 
                        centigrade, controlled with torch & nozzle. | 
                    
                      | Pressure control | Gas generated 
                        while switch on, and stopped automatically when pressure 
                        exceed 0.1mpa. | 
                    
                      | Indicateing 
                        meters | DC ammeter 
                        indicates working current, shockproof barometer 
                        indicates gas pressure | 
                    
                      | Safety fittings | Innovative 
                        backfire-proof fittings, intellectualized pressure 
                        switch, safety gas releasing valve and multilevel 
                        explode-proof design. | 
                    
                      | Work environment | 0-50 degree 
                        centigrade, well ventilated. Better 50cm above the 
                        ground. | 
                    
                      | Proper user | Individual user  (acryl) | Small shop (small quantity) | Factory level 
                        user (efficient work) | Factory level 
                        user (efficient work) |