The EL-12S door strike is designed for wood framed wooden doors. FEATURES Controlled by N/O contact or voltage output Can be used with AX Series, C-123L/A Set, C-123LW Set, DA-1DS, DA-2DS, DA-4DS, IE-8 Series, IX Series, JF Series, JK Series, JO Series, JP Series, KB Series, LEF Series, LEM-1DL Series, or LEM-1DLC SPECIFICATIONS Operating Volt: 12 VAC Station Size: 4-1/8"x1"x1-1/4" Station Mount: Surface Desk