I'm trying to get the correct capacitor for my 2 water pumps. One is 125watt and the other is 300watt, and both run at 220v. I don't know if it's the start or run capacitor, btw. I'm getting that since: 1F = 1C / V, and 1J = 1C / V, and 1W = 1J / second, that 1F = 1W. So the capacitor for the 125 watt motor should be: 125F / 1V = x / 220V = 0.568F, to get the 125watt power. Am I correct with this equation? If not, what is the equation to get the correct capacitor for the motor? Thanks in advance.