This Electric Bolt Lock Suitable For: Wooden Door, Glass Door, Metal Door, Fire Proof Door; Authority Certification: CE & MA approved; Quality Guarantee: Two years. Technical Specification: Working Voltage: 12VDC, Starting current: 0. 85A, Working current: 0. 25A. Features: With LED indicatora Voltage range: 9-15VDC. No noise Light silvery board. Electric Bolt dimension: 205mm*38mm*38mm