Product Type: COB LCD Module Product model: YT2004BBW-02 Dot matrix: 20 characters * 4 lines Dimensions: 98.00*60.00*13.50mm Window size: 76.00*26.00mm Display color: white text on blue background/black text on yellow-green background/black text on gray and white background are optional Application scope: Suitable for various instruments and meters, industrial automation, communication equipment systems, etc.