Feature:1. Adopt electric control to unlock, unlocked by a button indoors, and by a key outdoors, anti‑theft, high safety factor.2. Power on to unlock, power off to lock, and the unlocking direction is leftward opening.3. The internal structure of the lock has been further improved to further ensure safety, which is dependable to use.4. The installation is simple, does not require complicated operations and tools.5. Suitable for residential houses, institutions, schools, hostels, hotel buildings, factory warehouses, and can be used with electronically controlled security doors.Specification:Item Type: Electric Control LockMaterial: IronWorking Voltage: 12V power supplyPower: >12WUnlocking Direction: Leftward Unlock Package List:1 x Electric Control Lock1 x Lock Ear5 x Key1 x Installation Screw Pack1 x Installation Accessories Kit