Features: * Fit both Left and Right hand door (by rotating the lock 180 Degree). Support manual unlocking, 3 keys included. * Unit has two wires running from it for electronic access. High anti-theft and high safety. * NO (open when powered) Fail Secure Operating Mode. With electronic-control unlocking unit and a spring adjusting balance unit. * Super quality iron, surface dusting technology, durable. User friendly, and easy to install. * Suitable for all sorts of access control systems and Video door systems. Suitable for home, offices, schools, hotels, factories, warehouses, etc. Specifications: Voltage: DV 9 ~ 12V Current: 1.5A ~ 3A Power: > 12W Operating Mode: NO (open when powered) Work temperature: -40 Celsius~50 Celsius Package Size: 18 * 11 * 8cm / 7.1 * 4.3 * 3.1in Pacakage Weight1237g /43.6oz Package List: 1 * Electric lock 1 * Key cylinder 3 * Keys 1 * Installation Accessories (screws)