Respuesta del vendedor :
"
it is this psu circuit refer studer 's design limitation, no matter install with 15W or 25W transformer, its max output current always not more than 1A.
it just suitable for some spdif convertor which requir small current.
the psu can not work overload.
and because of power loss and thermal loss, so we won't recommend use full load of the psu always,
so you can have a look of this LPS for youe 12V 1A device
and this psu for your 12V 2A device:
https://www.aliexpress.com/item/4000915822264.html?spm=2114.12010611.8148356.10.1c895fb2ytB2J2. "
"
it is this psu circuit refer studer 's design limitation, no matter install with 15W or 25W transformer, its max output current always not more than 1A.
it just suitable for some spdif convertor which requir small current.
the psu can not work overload.
and because of power loss and thermal loss, so we won't recommend use full load of the psu always,
so you can have a look of this LPS for youe 12V 1A device
Fuente de alimentación lineal de 25VA Talema DC, LPS, salida de ruido ultrabajo DC 12V 2A, proporciona una potencia clara, mejora tu dispositivo. - AliExpress 44
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and this psu for your 12V 2A device:
https://www.aliexpress.com/item/4000915822264.html?spm=2114.12010611.8148356.10.1c895fb2ytB2J2. "