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soldering iron

soldering iron
              Most irons run from the mains at 240v or 110v. However low voltage type 12v or 24v generally part of a "soldering station" and are designed to be used with a spacial controller made by the same manufacture 
                            Typically they may have a power rating of between 15-100 watts or so which is fine for most work. A higher wattage does not mean that the iron runs hotter-it simply means that there is more power in reserve for coping with larger joints. This also depends portly on the design  of the  'bit'(the tip of the iron) consider a higher wattage iron simply as being more "unstoppable" when it comes to heavier-duty work because it won't cool down so quickly
                            

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