1. Special radiator with heat dissipation 200 times faster than Copper . 2. Junction temperature is just 54 degress 20-30 lower than other suppliers .Radiator temperature is only 47 degrees at working , better to ensure the long life span. 3. Optical Glass Lens ,instead of PC. Better light transmission. 4. MeanWell Power Supply. 5. 200W Bridgelux leds. Power: 200W Voltage(VAC): AC90~290VAC power factor: 0.95 luminous flux (lm): 18000lm LED efficiency (lm/w): 90.5lm/w Color rendering (Ra): 85Ra CCT(k): 3000~8000k Life (hrs): 50,000hrs. 1pc/box Lamp base package: 29*29*45cm Weight:9kg Lamp reflector package: 49*49*37cm Weight:4kg.