This door lock is special in design with durable material. It can protect your home or business shops. Low operational and standby current. It's especially suitable for wooden and metal doors. Material: Aluminium Alloy Working Voltage: DC12VLock Mode: Magnetic induction Dimension: 150*34*28 mm Lock Mode: Magnetic induction Secure Mode: NC model ( Locked when power on, unlocked when power off ) Working Current: star-up: 1.2A, operating: 0.25A.