This is a 110V - V (12V5A) access control power supply which consists of high quality electronic components and advanced international technology. It is immune to interference and provides a very stable and reliable output. Applicable to all kinds of building intercom power, can be connected to a variety of import and export control, especially applicable to a variety of electric locking drive. Features: External wiring port for easy wiring. Reduce the load on the access controller, save wiring, and reduce hidden dangers. The power supply controller has a remote unlocking module card slot, which can be inserted into the slot and unlocked with one button. 50W high power transformer, and has high utilization efficiency and large output power. Battery over-discharge protection, automatically disconnects the battery when the battery voltage is lower than 9.5V during battery use. The new upgraded power supply has an adjustable design with an adjustable time of 0-15 seconds. Semi-enclosed plexiglass cover with aluminum alloy on the back for easy heat dissipation. Small size saves installation space and is easy to use. Specification: Input voltage: AC110V-240V Output voltage: DC12V Output current: 5A Power: 50W Supply lock voltage: DC 12V; NONC optional Delay range: 0-15S Product size: 132 * 74 * 39mm / 5.2 * 2.9 * 1.5in Product weight: 400g Package list: 1 * Power Supply 1 * Instruction Manual Note: The measurement allowed error is +/- 1-3cm.