The Z68 tailcap switch provides both momentary-on and constant-on activation—press for momentary Scout Light or flashlight activation, press further to “click” the light into constant-on mode, click again for off. Raised guard around the pushbutton is a first line of defense against accidental light activation during operations or (for flashlights) while carrying in pocket or holster. Lock-out feature positively prevents activation during tactical operations, transportation, or storage. Made from aerospace aluminum, MilSpec Type III hard-anodized in black. Fits: Flashlights with .75″ diameter switch and Scout Light WeaponLights, including E2L-HA-WH, E1B, E1L-HA-WH, L4-HA-WH, E2D-BK, E2DL-BK, M300A, M600B, M620C KIT01, M620V, , M620C, E1E-HA, M600C