... cost it is our 2012 new design,Φ600mm,good choice for HID light source or LED it is our new design,for big quantity ... picture later. We have some advantages of this square lamp: The lamp shell: high strength,succinct shape,aesthetic appearanceReflector is made ... to install,easy to repair.Applicative light source:metallic halide lamp,energy saving, high pressure sodium lampWorking environment:-35°C--+ ...