This 200,300,400 mm is Hi-Intensity traffic signal head is using latest hi-power LEDs as light sources. It has low power consumption and long-life time. This traffic head is 3 sections. They are red lamp, yellow lamp and green lamp. The housing uses poly-carbonate material, it can be open and be maintained without other special tools. It is characterized with high impact strength, dimension stability, electricity insulation, corrosion resistance, abrasive resistance. The Fresnel lens design produces a uniform brightness and standard chromatography.