| Number of Characters Display Format Character Format Display Type Display Mode Character Size Outline L x W x H Viewing Area Backlight Voltage - Supply Dot Size Interface Operating Temperature | 40 20 x 2 5 x 8 Dots FSTN - Film Super-Twisted Nematic Transflective - 116.00mm x 37.00mm x 15.60mm 83.00mm L x 18.60mm W LED - White 4.5 V ~ 5.5 V - Parallel -20°C ~ 70°C Black |