Hi, We are Shenzhen ken try co.,ltd..We Supply kena LED street lights KN-530SL. SHEN ZHEN KENA INDUSTRY CO.,LTD. 86- ken Uses single powerful LED(10W-30W) as the light source , using our proprietary LE psulation. Utilizes the special design of multichip single module. Imported high brightness semiconductor chips. Integrative design for heat sink an ing; The LED is closely connected to the surface. The heat from LED is removed through the heat dissipation wing and also by the air ventilation. The design ensures a 50,000 hours life-span for the LED. If it works 12 hours per day, it can work over 10 years..