... material:acrylic or aluminium acrlic craftsled slim light box(A1,A2,A3,A4) 1)led edgelit system 2)one year warranty 3 ... four-slip open frame profile, easy to change picturesl Using LED light source, 110-220V ballast, 12V voltage to make it energy ... energyThis kind of product is adopted 12V suply voltage and LED cold light source.Having the feature of long lifespan,high brightness,glittering ...