The featured traffic signal is provided with constant voltage supply to avoid risk of luminous intensity. The housing is die-casted in one stage out of polycarbonate and thus weighs quite light. As added protection to confirm with IP54 to safeguard against weather erosion, the traffic signal is sealed with silica gel. Added to allow fire resistance is UL-94V2/V0/5V. To include is a product with a life span of more than 10 years tested to withstand vibration and wind pressure of at least 145km/h. The traffic signal has been tested and approved by Traffic Products Test Center of the Ministry of Public Security, CE and GB14887-2003. Products that are up to ITE or SABS standard are also available in our company.