... 2012 new design,Φ600mm,good choice for HID light source or LED it is our new design,for big quantity, ... later. We have some advantages of this square lamp: The lamp shell: high strength,succinct shape,aesthetic appearanceReflector is made from ... saving2. high strength,succinct shape,aesthetic appearance3. Long lifetime, low maintenance cost4. OEM welcome 2012 new design energy saving LED round light