• Optional 110V AC to 20V AC Adapter for G4 Doorbell
• 6m Cable
• Polycarbonate Enclosure
• CE/FCC Certified

UniFi G4 Doorbell Power Supply UVC-G4-Doorbell-PS-US. The UVC-G4-Doorbell-PS is an optional power adapter for the UVC-G4-Doorbell. Instead of using existing electrical wiring, one end connects to the doorbell and the other end plugs into a standard US electrical outlet. Input: 110VAC, 60 Hz, 1A; Output: 20VAC, 0.7A; Cable length: 6m (19ft 8in); (2) Spade wire connectors.