... .64W A3 Front Opening Ultra-slim Aluminum LED Light Display Box,Aluminium LED Picture Frame,Aluminum LED Poster FrameItem ... Brand: DENAModel No.: M-DN-A3-1-ALLB-SS-029 Features & Parameters:1> ... )FR-4Range of Application:Supermarket, Bar, Hotel, Exhibition Hall, Advertising Display, Hospital, Bank, Chain Store, Restaurant, Airport, Subway, Dock, Elevator ...