So I have this WiFi doorbell that uses three 18650 batteries, but it can also be powered from a power supply. The manual says that one should use AC power between 8-24V.
So my question is, can I use a DC power adaptor instead? Since it can be powered with batteries which is DC one would think it should work with a DC adaptor? I imagine it normally converts the AC to DC inside the unit?
And if it works with DC, would it also be between 8-24V, or are AC and DC voltage calculated differently?
Thanks in advance.