... 4.Output:DC12V New invention flash board led sign for window displayDifference LED Color,difference effects:Flash board led ... the frame or sheetFlash board led sign Application:1.restaurants, dressing shops, bars, clubs, theater, mesume, book shop, super ... , special store, hairdressers, commercial centers, night mrket etc.2.for notice in school, companies, classroom, metrostation, resident place etc ...