LED 16 segment Display Size: 0.5inch, 1inch, 2.3inch Color: red, green, yellow, ... alphanumeric displays for indoor, application;2) Digit height: 0.5" 1.0" 2.3";3) Single digit, with black or ... ),yellow(590nm),blue(430nm), pure blue(470nm);5) Advantages: long life, low voltage, energy saving, even luminance, good stability ... areas of equipment/machine;7) We welcome to receive your custom requirements.