IRC SeriesP2.5mm,480mm*480mm cabinetP3mm,576mm* 576mm cabinetP4mm,512mm* 512mm cabinetP5mm,640mm* 640mm cabinetBlack SMD LEDsContrast: 8000:1 Easy InstallationSpring Lock Connection design with micro-adjustment. Stable & ReliableHigh Precision Die-Casting AluminumLight weightUrtra-Thin Die-casting Cabinet Quality MaterialsStrong CabinetFull Black and Mat LED lamp to ensoure high contract ratioGood ventilation DesignReliable stainless locks.Seetronic or Nertrik Connectors Easy MaintenanceDouble protection against BumpQuick replacement of all the partsCover protection for all LEDs