... Product Description Dual Digit LED Displayv/double digit orange LED Display/ 7 segment LED Display/LED Numeric ... 520nm,yellow:585nm to 590NM,amber:600nm to 610nm,orange:630nm.Luminous IntensityRed:50 mcd to60 mcd,hight ... pure,green:180mcd,yellow:14mcd to 50mcd,amber:30mcd,orange:30mcd.Forward Voltagered:1.8v to 2.5v, ... hight bright red/orange:2.0V,blue/pure green:3.5v,green: ...