Мне, к примеру, LED нравятся. https://www.google.de/search?q=t%C3%BCrkranz+weihnachten+led&tbm=isch&ved=2ahUKEwiJhfH7_ZL7AhU6IcUKHZzgD1UQ2-cCegQIABAA&oq=t%C3%BCrkranz+weihnachten+led&gs_lcp=CgNpbWcQAzIHCAAQgAQQGDoKCAAQsQMQgwEQQzoLCAAQgAQQsQMQgwE6BQgAEIAEOgYIABAHEB46BggAEAgQHjoECAAQQzoECAAQHjoGCAAQBRAeUMQHWJESYMgZaABwAHgAgAFtiAGiA5IBAzQuMZgBAKABAaoBC2d3cy13aXotaW1nwAEB&sclient=img&ei=bTZkY8maDrrClAacwb-oBQ#imgrc=fNqB1cLBvrKAfM