ITEM NAME:DC12V Electronic Door Lock Access Lock Safe Drop Bolt Lock for Door Access A7I7 DC12V Electronic Door Lock Access Lock Safe Drop Bolt Lock for Door Access A7I7 Working voltage: 12V(Adjustable time delay 0s,3s,6s) Red-power supply (+) White-COM Black-Power ground(-) Yellow-NC Color: white + silver Material: Aluminum alloy Working current: Start state 1.2A Persistent state 120mA Coil type: Continuous working Security type: Electri power lock,unlock Lock core: The diameter og 12.5MM stainless coer,exteding the lengh of 15MM Locking mode: Magnetic induction Unlock Mode: Fail Safe (Locked when power on, unlocked when power off) Dimension: 150X34X28mm( L / W / H )? Packing include: 1x Door access lock