How to know what current rating necessary for power switch

I finally found a suitable switch. The TE model here:
https://www.mouser.com/ProductDetail/te-connectivity/avh19lsfe7241604/?qs=OlC7AqGiEDlYU5yjXlID6g%3D%3D&countrycode=CA&currencycode=CAD

At $CAD 27.00 each they're not cheap, but definitely better than the 80-something dollar ones mentioned above. They're also pretty big, but hey, I can always have "Fisher Price" engraved on the front panel, right? They're rated at 25A current handling, so no worries there. The ring light button will take 24V, which I can get fairly easily from my supply. I think they are pretty.

BTW, I pointed out to the very helpful rep. at Mouser that many of the specs listed on their and Digikey's website for these switches are incorrect.

The TE specsheets have the correct specs.