powering 9V TC effect pedals with 12V - harmful?

[JazzNote]

I recently bought a battery powered active speaker which also provides a 12V 500mA outlet.

Now I wonder if I could use this to power my TC pedals (9V 100mA) without risking damage to them. TC hasn’t answered my question, but maybe someone here has experience.

TIA

[Woody Sound]

They should be fine, maybe even better. But don't hold me to it if something bad happens.