... performance, festival, house decoration, flash gift. Glow silk flower Luminescent -silk flower is made by hand, the materials are colorful Electroluminescent ... wire, silk cloth, metal frame, etc.The EL silk flower can be applied in performance, festival, house decoration, flash ... . The lifetime of lighting is2,000 hours when getting the power. 1) Electroluminescence (EL) theory of inorganic phosphor 2) ...