Compact and Secure: This mini electronic is designed for secure access control, featuring a small form factor perfect for concealed installations in applications. Robust Construction: Built with materials, the lock ensures reliable performance and resistance to wear and tear, providing peace of mind in security-sensitive environments. Easy Integration: Ideal for integration into personal projects or commercial security systems, enhancing safety without compromising on aesthetics. Colour:As shown Material:Metal style:DC12V-0.54A Instructions for use and installation: 1. The red and black wires are the power cords of the electromagnetic lock, regardless of positive or negative poles. 2. When the power is on, the lock retracts and the door opens. When the power is off, the lock pops out again by the spring force and the door is locked. Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Mini Electronic Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.