... Blessed Huihuang PV energy Co.,Ltd and Zaozhuang College, is the first light source with highest luminous flux,luminous efficiency,energy saving ... performance,quality and so on.1,High lighting effect: LPSL is light source with highest lighting effect at present,more than 200LM ... life: LPSL has long working life, about 19000 hours.light attenuation is smaller than others,can reach 80%-85% Initial flux ...