Accessory code X373 Symetrical external screen for monochromatic versions - L=614 X373: Symetrical external screen for monochromatic versions - L=614 Technical description: External symmetrical screen L=614mm for versions with monochrome LEDs and Tunable White (TW) LEDs. Made of sheet steel that has been galvanised and then painted. Colour: Black (04) Weight (Kg): 1