Shabbos Smart Switch Wall Timer Programmable Light Timer For Toggle Switches Includes: 1 screwdriver, 1 long screw, 1 installation and programming manual Width: 5" (12.75cm), Height: 5 1/8" (13 cm), Height: 5 1/8" (13 cm) Requires 2x AA batteries; Glow in the Dark Buttons; Temperature display 9 ON/OFF Programs, 1 random night-time program Mounts directly over existing light switch; Low battery indicator; Sturdy plastic body