American beauty soldering irons are full output irons designed and built to produce a tremendous amount of heat. Incorporating a voltage controller into your soldering process prolongs the life of your soldering irons heating element and tip, reduces the thermal damage caused by excess heat buildup and saves energy and down-time by idling your iron at breaks. This voltage controller is intended to use with our complete line of heavy-duty soldering irons, ranging from 60 to 550 Watts. In addition, it can be used with our line of industrial solder pots to provide tighter control of temperature variation. Longer heating element life and a reduction in damage resulting from excess thermal capacity. Tighter process control: Our internal tests have shown that by incorporating a voltage control with our Model 600 solder pot, we were able to achieve a temperature fluctuation of less than +/- 5 degree. Improved solder joint quality: The ideal operating temperature of your soldering iron or pot should be comfortably over the eutectic point of your solder. Excess heat simply causes damage.