In Maximo's first post above, one photo shows the switch's contact rating, which is stamped into the edge of the metal frame: 10A 125VAC. Assuming that the current rating at 125VAC is also applicable at 12-15VDC is sometimes a safe bet, but not always. It depends on the switch's mechanical design (mostly on its contact spreading velocity and separation distance) and contact materials.
It's not necessary to buy expensive MIL-SPEC switches. You just have to pay attention to ratings to be sure that you're getting a switch that can reliably break a DC circuit at the necessary current. Electrical components for aircraft should be sourced from well established component suppliers with traceability in their supply chains so that you get genuine parts. If you do that, you can comfortably use whatever style of switch suits your desires.
Except in an emergency to get yourself home, don't buy electrical components for your plane off the peg at an auto parts or hardware store. Their stock is often sourced from Chinese contract manufacturers who build products down to a price. Their supply chains are easily penetrated by counterfeiters who substitute inferior parts (e.g. chromed steel contacts instead of tin or nickel plated brass).
The switch shown in Maximo's photos doesn't appear to have any manufacturer name or logo on it; I'm guessing it came from the electronic component bazaars in Shenzhen.
https://www.evilmadscientist.com/2009/a-visit-to-the-electronics-markets-of-shenzhen/
Here's an example of a very similar switch that I found with a quick search. Don't forget the old maxim: you get what you pay for!
https://www.aliexpress.us/item/3256806077766190.html
