Hi…unless the PSUs are designed to tolerate it, a voltage mismatch (even within the +/- 0.25V tolerance) could destroy one or both PSUs.
Just get a decent PSU with adequate output, like the “official” 2.5A, or bigger if required for power-hungry peripherals .
A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.
Read the statement by Michael Teeuw here.
C