Fuliko 12V Fail-Safe Electric Drop Bolt Lock — NC Mode, Surface-Mount, 0/3/6s Delay for Access Control

12V Fuliko electric drop bolt lock built for access control system integration. Operates in NC (fail-safe) mode: the bolt is held when power is applied and releases if power is lost or when triggered. Choose from three delay settings: 0s, 3s, or 6s. Wiring instruction: Connect red wire to "+12V" and to "GND". Review the wiring diagram before installation. Surface-mount design fits wood, metal, and fireproof doors.