... a typical green lighting.·Energy Saving: saving energy more than 80% than the tradtional lamp.·Low Operating Temperature:Never fever or ... efficiency over 90%,Power factor up to 0.98,THD less than 10%·Isolated low-voltage driver mode leading to high safety ... fraigile glass,no environment-harmful materials·Tremendous energy saving:more than 75% electricity saving over conventional sodium light. 40w LED ...