Wick ball is a lighting device, usually made of glass, with filament and filling gas inside. After electrifying, the filament glows to achieve the lighting effect. Wick balls are widely used in the lighting needs of families, businesses and public places. Juncus is a kind of plant, belonging to Gramineae, which is common in wetlands and swamps. Its slender and soft stems can be used to weave lanterns, hats and other handicrafts. Juncus also symbolizes auspiciousness and celebration in folk culture.