... energy saving tube saving 60% energy than fluorescent light use good aluminum material, better for heat ... 144 high brightness , long life SMD LED, no light harm. 2. PFC>0.9 3. Power efficiency>86 ... energy saving lamp with same luminous. 6. Low light declines, the life span is up to 25000hours, ... times longer than incandescent lamp. 7. LED cold light source, less calorific value, not hot effect reaction ...