hi guys. i have hot air station cheap one. im seeing videos that similar hot air station is weaker then the quick 862 for example. and they say that the wattage of the quick is more then this one. what does that mean ? if my station give 450 Degree C and quick gives the same heat what is the role of the current and voltage here ? how wattage effects it to be more powerfull at melting solder while both give the same heat ? thank you.