Electric lock suitable for delivery cabinets, refrigerators, mailboxes, self-service lockers, and more. Constructed with a steel plate shell and carbon steel interior for robust security. Features built-in unlocking status detection for added safety. Easy to install with no directional limitations, allowing for mechanical unlocking. High security with a lock catch that withstands 150 kg of pulling force. Self-elastic design with adjustable tension for doors weighing 0.5-4 kg. Specifications: Material: Carbon Steel. Surface Treatment: Electrophoretic paint (over 500 hours neutral salt spray test). Working Mode: Power off to lock, power on to unlock. Electrical Parameters: DC 12V 2A. Mechanical Lifespan: Approx. 500,000 cycles. Electromagnetic Lifespan: Over 1,000,000 cycles. Lock Catch Strength: 150 kg force. Ambient Temperature: -40℃ to 60℃. Size: Approx. 5.9 x 7.3 x 1.3 cm / 2.3 x 2.9 x 0.5 inches.