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