These Architectural Control Systems Electrical Cylindrical Electronic Locks are locked or unlocked with the assistance of an electrical current and can eliminate the hassle of lost keys or re-keying while providing greater control or flexibility over access. The current will actuate the lock to either fail-safe or fail-secure, depending on the system. Fail-Safe locks will unlock doors if power fails and are ideal for fire exit or stairwell doors. Fail-Secure locks will lock doors if power fails and are ideal for IT rooms and secured or sensitive areas.