Just ordered this switch 1213A NO and in reserve for the brake light a 1212A NC because the switches are cheaper than the shipping.
https://www.reichelt.de/drucktaster-4a-250vac-1x-ein-t-1213-a-p105699.html

BTW A stands for Argentum, it is able to carry the double current than a C version which is Silver plated Copper only. We do not have to switch 250V at 4A but the lifespan should be longer than the C type even when used with weak current.

'14 4/4 graphite grey