Porcelain Christmas Tree tealight. A great addition to any festive setting…and it makes a great Christmas pressie for someone special …why not yourself! Thrown on the potter’s wheel and then pierced so that the light flickers through the tiny holes in the porcelain, this Christmas tree tealight is then high fired to 1260 degrees. This makes the porcelain become translucent when lit from within, giving a soft amber glow and the throwing lines become clearly visible.