... on each segment Industrial standard size Provides excellent reliability in bright ambient light Made with white segments and black surface ... productLong life-span,ROHS,ISO9001Dominant Wavelength:Red:630nm to 650nm,hight bright red:620nm to 625nm,blue:460nm to 470nm,green:560mm ... 14mcd to50mcdamber:30mcdorange:30mcdForward Voltagered:1.8v to 2.5v,hight bright red/orange:2.0V,blue/pure green:3.5v,green ...