【WORKING PRINCIPLE】:The cathode lock is locked or unlocked by the working principle of pushing or pulling the release lever generated by electromagnetic force. the general term electric lock is usually operated by electromagnetic force generated by electromagnetic force. 【TWO WORKING METHODS】：Power - off locking type. under the condition of no power supply, the locking bolt cannot be unlocked; on the other hand, the locking bolt can be unlocked by power supply; Power - off unlocking type. under the condition of power - on, the locking bolt can be opened, and on the other hand, the locking bolt can be locked by power - on. 【FIRST STEP OF INSTALLATION】：Determine the position of the lock body, and then slot and dig holes in the door frame according to the size of the installation template or lock body. Working voltage: 7v-18v, working current: 85mA 【SECOND STEP OF INSTALLATION】:After confirming that the wiring is correct, install the lock body on the door frame. Close the door and make sure that the locking bolt does not cause greater pressure on the locking bolt. 【LAST STEP OF INSTALLATION】:When all the above operations are completed, make sure there is no problem, and then tighten the screws to complete the installation.If you encounter any questions during use, please contact us in time. we will answer them patiently., Manufacturer: Sonew