... °Power FactorEfficiencyLifespanMaterials≥0.9580Lm/W50,000 hours clear PC & aluminumIlluminance diagram: Height(m)Beam angle(120°)Illuminance(Lux)1.0 1941 ... initiation,no flickering,no RF;5. Scientific LED series-parallelling connection layout,each LED works without affecting the others;6. In ...