<https://shop.diyhifisupply.com/product/spdt-push-button-switch-9-24v-led-illumination-22mm-blue-led/#product>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://shop.diyhifisupply.com/product/spdt-push-button-switch-9-24v-led-illumination-22mm-blue-led/>