Why T12 iron tip heating faster than 936 iron tip? 
                                
                                
                                1. Heating core resistance is smaller, larger power; Resistor smaller, larger power, T12 resistance, about 8, using 24V, its 72W, even if it is 12V, it also can reach 18W. And then measure the domestic core of 936-A1322 , 15, the same is 24V
                                                                    
                                
                                    
                                      DATE:2017-12-20 22:14:03                                   
                                    
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