1.External connection interface, convenient connection. 50W high power transformer. 2.Provide 5A current output. There is remote control module lock slot in the access control system. 3.Battery anti-polarity protection (only fuse is burnt when the battery is connected backwards, and the power will not be damaged). 4.Overdischarge protection of the battery. When the battery voltage is lower than 9.5v during the use of the battery, the battery is automatically disconnected. 5.New upgrade power adjustable design, adjustable time for 0-15 seconds. Input Voltage: AC 110V-240V Output Voltage: DC 12V Output Current: 5A Supply Lock Voltage: DC12V, NO, NC Optional Delay Range: 0-15s Power: 50W Size:212mm*172mm*70mm Material:metal Colour:As shown in color Package Contents: 1 * Access control power supply 1 * User manualOnly the above package content, other products are not included. Note: Light shooting 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.