This power controller is specially designed for access control systems and intercom cameras. Worldwide voltage input 110 - 240V AC, output 12V DC. The operating current is 4A, which can provide 12V DC stable output voltage for electric locks and access control controllers. It can be used with electric locks, exit buttons, remote controls, RFID access control keypads, doorbells, etc. The delay time is adjustable and the locking time is adjustable from 0 to 15 seconds. Material: metal + plastic Color as shown Package Contents: 1 module Only the above package content, other products are not included. Note: Light reflection 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.