EMS Dual Fire Capacitor discharge ignition systems EMS Dual Fire CDI systems are designed with the focus on performance and reliability. All provide the same level of features, the only difference is the number of input and output channels. Features Selectable high or low power output. The output power can be controlled in real time via any ECU output. Selectable rotary or piston engine modes. Selectable drag or circuit racing mode. Selectable rising or falling trigger edge. Able to fire leading and trailing spark plugs for rotary engines. Fire twin spark plugs on piston engines without needing double ended coils. Specifications in circuit racing mode   Power Output (Low / High) 70 / 110 mJ Voltage Output (Low / High) 370 / 470 Volts Maximum Current Draw (Low / High) 6 / 8 amps Specifications in drag racing mode Power Output (Low / High) 70 / 150 mJ Voltage Output (Low / High) 370 / 550 Volts Maximum Current Draw (Low / High) 6 / 12 amps