I feed my Fuzz without output transformer, overkill and ageless, my T-rex that sends better 12V and 9, and my Chinese delay preamp 'my' Mississippi Drum Machine "ridge-house. It sometimes sounds like a mass when it does not have its own electrical outlet or questionable facilities (like garages, cellars bar etc ...) but then it just plug with no earth cable. Apart from that, it works very well, and has a switch for the price of 2 rechargeable ...
It has eight 9V outputs a 12V DC and 12V AC, 500mA developing each (enough to power 99.9 100 pedals market). Every son provided for powering all types of pedals except those intended to work only with batteries, but a trip to the electronics store, once (2 actually) soldering iron and is made .. .
And 10 outputs are isolated ...