3 ms·I'm German and never saw a light switch like in [1] in my whole life.by legulere 10y agoI'm German and never saw a light switch like in [1] in my whole life.paublyrne 10y agoI'm almost certain it's an immersion heater switch.majewsky 10y ago+1 I'm German, too, and I only ever saw these switches in contemporary settings UIs instead of checkboxes.Eugr 10y agoThey are still pretty common in the US, especially in the older buildings.