The SR Remote Dual Switch provides remote activation for any SureFire Weapon Light with a switch socket. Two switches—a momentary-on pressure pad switch and a constant-on pushbutton switch—are integrated with a Snap-On clamp for easy attachment to your firearm’s Picatinny rail forend. The SR07 has a 7-inch cable which works with most rifle/carbine applications. Fits: Millennium Universal” Classic Universal” Scout Light with socketed tail cap” and X200″ X300″ and X400 with XT tail cap.