With the safety in the up (ARMED) position, pressing and holding the ARC switch displays a Warning Arc discharge across the front of the X2 CEW.
With a Warning Arc display, the user may deter a subject without having to use actual force. Unlike with the M26, X26, and X26P CEWs, a Warning Arc can be accomplished without removing the live cartridges. Pressing the ARC switch does not deploy the Smart cartridges even if the X2 CEW is loaded.
Note: Pressing the ARC switch for a half-second or less will advance cartridge selection to the right. A sustained ARC switch press (greater than half a second) will not advance the cartridge selection.
Use the ARC switch, not the trigger switch, to employ the Warning Arc display. Pulling the trigger switch will deploy a loaded unfired cartridge.