We can produce various speed controllers including, 3A ESC, 6A ESC, 10A ESC, 20A ESC, 30A ESC etc Input voltage—DC 6-16.8V(2-4S ... 2 poles motor and Medium timing value for motors with more than 6 poles to get a high efficiency. For higher speed, High timing ... value can be chosen. 20A 30A or 40A Electric Speed controller/ESC