For the previous wireless video doorbell, we only need to be able to reach the press the button, and then the family can ring it. But now our home improvement more luxurious, more and more beautiful living environment, so I hope I installed the wireless video doorbell appearance is very atmospheric, durable and so on. So there are two kinds of wireless video intercom doorbell power supply, the battery is more beautiful, weak power supply easier to maintain.

The battery-powered wireless video intercom doorbell Such as the host 18V visual extension 12v, the bottom of the total visual intercom doorbell (host) 12v power supply with UPS (power delay after the power supply), the trunk line to follow up the extension line separately Wear (1 N-core RVV N core * 0.5, 1 SVY75Ω * 3 video line total of 2) and with how much the tube 20mm PVC pipe about the same, after the easy maintenance of 25MM PVC pipe good line.

Weak power supply video intercom doorbell is relatively simple, strong power - "12v switching power supply strong -" 18V switching power supply or: strong power - "(dual switching power supply) fuse (FUSE): 3A user extension requires 18V power supply Not 220V strong, weak in accordance with the instructions on the line.