We can tell you straight away: Supplying PoE to a non-PoE device might result in damage to the device.
A standard PoE switch will detect and identify before supplying power. It will only supply power if it detects that the device supports PoE. This protects devices that do not support PoE from being damaged.
However, non-standard PoE switches do not have this detection function and will directly supply power. If a non-PoE device is connected to such a switch, this may cause damage to the device.

Here are some ways to prevent device damage.
Use a standard PoE switch:
Standard PoE switches detect and identify before supplying power to ensure that only devices that support PoE are powered.
Use a PoE splitter:
For non-standard PoE switches, a PoE splitter can be used between the non-PoE device and the switch. This can separate power and data and avoid directly supplying power to devices that do not support PoE.
Through the above methods, you can effectively prevent the problem of device damage that may be caused when sending PoE to non-PoE devices. So, back to our original question what happens if you send PoE to a non-PoE device? Supplying PoE to a non-PoE device might result in damage to the device.