... 3. Long lifetime, low maintenance cost it is our 2012 new design,Φ600mm,good choice for HID light source or LED ... show you picture later. We have some advantages of this square lamp: The lamp shell: high strength,succinct shape,aesthetic appearanceReflector ... strength,succinct shape,aesthetic appearance3. Long lifetime, low maintenance cost4. OEM welcome 2012 new design energy saving LED round light