... , Meet the requirement of PRC GB14887 standard 2, high brightness LED Arrow Indicating Signal Main parameters: 1, Display: Red, yellow and ... green display in arrow screen. 2, Diameter of the screen: Ø300 mm,Ø400 mm ... for LED: Red AIGaInP, yellow AIGaInP, green InGaN, imported LED with high brightness. 6, Working temperature: -40°C ~ +75°C. Arrow Indicating ...