... to install 4. Light fastness 5. Long life time LED building Light box signs ProductLED building Light box signsMaterialS.S ... . Aluminium Alloy, LED, Acrylic. ABSDescriptionScreen printingVacuum formingLight fastnessLong life-span LEDEasy to ... bubble, paper cartonApplicationBus station, Airport, Bank, Shop, Supermarket LED building Light box signs