MG Electronics ST121A 12 VDC Plug In Power Supply Compact Electric Strike If you want to add

If you want to add a remote control to release the maglock

Hurricane Approved Hardware

which is field selectable

Can mount on a standard single-gang electrical box if holes are added to the back mounting plate

Both black and white cosmetic covers included

MG Electronics ST121A 12 VDC Plug In Power Supply Compact Electric Strike If you want to add12 VDC 1A high efficiency plug in wall power supply. Two prong. Screw terminals, two for DC output. For use with many electric strikes and other devices. Screw tab for screwing the unit into a duplex wall outlet for a semi permanent installation. Red LED on the back side to indicate power.