The Regulated Single-Ignition Cutoff provides safety and convenience for your gas powered plane. The Ignition Cutoff provides a way to cut your engine from the transmitter should you experience any trouble with your throttle servo. The unit has two modules that are connected by a fiber-optic cable. There is no electrical connection between your ignition and your radio system. This isolates your receiver from any possible ignition module malfunction which could damage the receiver and take the aircraft down. The unit regulates the battery (2S Li-ion/poly or LiFe) to 5.0V or 6.0V and supports engines with dual ignitions. The LED on the ignition side is removable and extendable with standard extensions. The LED is not required for the unit to operate properly.