it definitely depends on your application for these. My canadian tire ones default to off and for me that's a good thing! Sometimes I forget to disconnect the water change or ATO hose from the reservoir after I've remotely (with the remote control) turned it off. I then turn off the power bar that they are connect to. If they were defaulted to ON whenever I turned on their powerbar I would have a real mess on my hands
But then, in other applications for these you may want them to come on.
