... Long lifetime, low maintenance cost it is our 2012 new design,Φ600mm,good choice for HID light source or LED it is ... and dustproof performanceEasy to install,easy to repair.Applicative light source:metallic halide lamp,energy saving, high pressure sodium ... high strength,succinct shape,aesthetic appearance3. Long lifetime, low maintenance cost4. OEM welcome 2012 new design energy saving LED round light