Novel structure, perfect sealing protection Excellnt performance of heat dissipation: we adopt the technique of dual dispersion of heat by aluminum die-casting shell cooling fin and cavity, effectively reduce the temperature of high power LED. Ultra-long lif span: the light attenuation is below 8% within 10,000 hours, the life time is over 500,000 hours. Energy saving significantly: comparing to the sodium lamps at the same illuminance, can save more than 60% energy. Green and environmental protection? Not containing nocuous matter, such as haloid and hydrargyrum. Model mumberGC-SL05-XX200GC-SL03-XX120Rated Watts(W)200120Height of hte pole(m)1210Center illuminance(Lx)≥40≥30Average illuminance(LX)≥30≥20The area of illumination(diameter)≥15X35≥10X30lnput voltage range(V)AC90 260 50/60HZAC 90 260 50/60HzEfficiency of Power supply≥88≥88Power factor≥0.9≥0.9Normal working temperature(°C)-40 60-40 60IP ratingIP65IP65Color temperature(K)2500 10.002500 10.00