JoyoPower Supply 2 JP-02 Isolated Effect Pedal Multi Brick jp02

I notice it stated that each outlet is rated at 100mA. I'm a fairly new guitar player; so this may be a silly question. But, that's never stopped me before. It seems I've heard that some pedals need more that 100mA. Is this true; or will this run a standard fuzzbox, tremelo, wah-wah pedal, etc?

Could I plug a regular 9v pedal into the 12v or 18v outputs?

Can the Joyo Power Supply connect to MXR and Fulltone pedals too?

Does anyone know how to mount this underneath a pedal train PT Pro board? I just got another one of this power supply, and I don't have space for it.