[EXTERNAL CONNECTION INTERFACE] Conveniently connect the power supply to your door access control system. ^^ [5A CURRENT OUTPUT] Provides a high current output of 5A, ensuring sufficient power supply for your access control system. ^^ [OVERDISCHARGE ] Prevents damage to the battery by automatically disconnecting it when the voltage drops below 9.5V. ^^ [ADJUSTABLE TIME] New upgrade design allows you to adjust the time for 0-15 seconds, providing flexibility in control. ^^ [AC 110240V POWER SUPPLY] supply suitable for various building intercom and access control systems.