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.