I have been working very hard on a Version 3 Microprocessor for this welder. Version 3 will change this welder from timed pulses to energy pulses. Energy pulses will give you more control of your weld by calculating and adjusting the pulse width automatically to the resistance that you are welding, preventing burned holes due to the wrong probe pressure and a change of resistance. This processor will also have features showing the capacitance of your capacitor and a feature to change the max voltage to 24V.