Powering two ip cameras from one power supply?

Question

CCTV

Friends, there are 3 cameras.
https://www.aliexpress.com/item/GADINAN-Full-HD-10... like this with PTZ.
and two https://www.aliexpress.com/item/BESDER-Yoosee-IP-C...
like this.
Question for connoisseurs, I have a power supply for each 12V 1A.
From one PSU, as I understand it, I can power a maximum of 2 cameras without a suspension? parallel connection, of course, so as not to block the wires - let them go twisted (the wire is not very long, 7 meters).
And if we take a PSU 2A or 4A - can I expect that all 3 cameras will work when connected in parallel , including the gimbal without failure? maybe someone has experience. Thanks to.

Answer 1

Well, everything is elementary here. The power consumption for the first chamber is 3 W, for the other two - 6 W each, a total of 15 W. We divide 15 W by 12 V, we get a current slightly more than 1 A - therefore, one 1-ampere power supply is not enough, you need a 2-ampere one (if one is required).
At the same time, I draw your attention to the fact that POE power is not provided for these cameras, there is no POE splitter in the kit, there are two separate connectors on the camera.

so as not to fence the wires - let them go twisted

So, in order to do this, you will either have to buy splitters, or make a homemade collective farm.