1. With door close delay function, locks until the door completely stops moving, effectively protects the door and locks against damage. 2. Superior low temperature design, safe and durable. 3. The new structure optimization design, more stable and secure. 4. Ultra-low power design, more durable and more environmentally friendly. 5. 500,000 times the durability of power locks. Specification: Our solenode bolts are of the highest quality, they are very sturdy and extremely durable. With door close delay function, locks until the door completely stops moving, effectively protects the door and locks against damage. It is suitable for wooden doors, glass doors, metal doors, fire doors, etc. Why not take a look? Features: With door close delay function, locks until the door completely stops moving, effectively protects the door and locks against damage. Superior low temperature design, safe and durable. The new structure optimization design, more stable and safer. Ultra-low power design, more durable and more environmentally friendly. 500,000 times Power locks durability. Made from high strength aluminum lock body, stainless steel bolt. Operating modes: NC (closed when powered) Fail Safe. Suitable for wooden door, glass door, metal door, fire door, etc. Comes with mounting screws and all necessary parts to fit a standard application. Specification: Item Type: Electric Deadbolt Lock. Material: Plastic Color: Silver Working mode: NC Fail Safe (close when powered) Feature: Low temperature Voltage: DC 7V -18V Instantaneous current: 850mA Working current: 85mA Time: 0 / 3 / 6 seconds Size of Item: 20 * 3.5 * 4cm / 7.87 * 1.37 * 1.57in Package Weight: 509g / 17.95oz Package List: 1 * Electric Mortise Lock 1 * Manual Instructions 1 * installation size sticker 1 * package of screws 1 * ordinary fixed board 1 * magnetic fixing plate