... >60,000h 5. durable courtyard light High Frequency Discharge Induction Courtyard Lighting Feature:1. High pressure die-casting aluminum lamp shell, ... : park, courtyard, green place, road, commercial region and high-level leisure place and so on. Detail Data: Model No ... Temperature: 2700-6500KAmbient Temperature:-40°C-50°CWorking Frequency: 2.65Mhz High Frequency Discharge Induction Courtyard Lighting