... ;cold white 6000-7000k Work environment:-35 ºC-55ºC LED luminous efficiency: 95~105lm/w Protection Grade:IP65 Power factor:>0 ... span: >50,000h Warranty: 2 years Product DescriptionThe product, High-Power LED street Light , is innovated and manufactured by our company with ... , which could be widely used road lighting located in the tunnel of the road surface, sub-way, rail way etc.