... /DC24V (optional);Current Draw: 12V/300mA; 24V/150mASuitable for: Wooden door, Glass door, Metal door, fireproof doorFinishes for Shell: Anodized ... for any access control system (reader, exit button, intercom);Easy to install, no frame door can choose bracket ... for two years,maintenance forever, change within 3 months because of product quality itself 180kgs flush mounted single door magnetic lock ...