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Technical parameters Diameter Color Qty of LED Light Intensity Viewing angle Wavelength Power 300mm Red 140pcs ≥4000cd/m² 30° 625±5nm ≤5W Yellow 140pcs ≥4000cd/m² 30° 590±5nm ≤5W Green 140pcs ≥4000cd/m² 30° 505±2nm ≤5W Working Temperature -40℃～+80℃ Outside Material PC （UV resistant）/Aluminum Manufacturing Details FAQ 1.What LED colors are available? Common options include red, green, and yellow, depending on the traffic signal configuration and local traffic regulations. 2.Where can Countdown Timer Traffic Lights be used? They are commonly used at urban intersections, pedestrian crossings, highways, school zones, commercial areas, and other locations where clear signal timing information can improve traffic management and safety. 3.What display sizes are available? Different display sizes can be provided according to the road conditions, installation height, viewing distance, and project requirements.