The 2004A character LCD moduleis designed to display letters, numbers, symbols, dot matrix. Support 4-bit and 8-bit data transfer mode. Display contents: 20 characters × 4 lines Operating voltage: + 5V Display screen: Yellow-green Screen Operating temperature: -10°C – +60°C Controller: SPLC780 Module size(W x H x T): 98.0 x 60.0 x 14.0mm Viewing area(W x H): 76.0 x 26.0mm