EL is as thin as paper, the second layer is inorganic material, the first & thirdlayer are two electronic-poles. It is also called cold light source because thereis no heat generated in using. The unique structure & characteristics can supplyyou a special kind of plane film cold light source. It has great superioritycompared with other man-made light sources.EL can be applied in commercial advertisement. It can flash with wonderful pictures.It gives special advertise effect especially indoors.Note: the intellectual property shown on the listed products belong to third parties;the products are offered as examples only producing area:CHINA payment:T/T supplying capacity:10000