120lm/w OSRAM chip super bright LED, 18.8% KYOCERA cell high efficiency solar panel, super long life deep cycle Gel battery Solar ModulesPoly Crystalline Silicon Module, 50-250WpLight SourceSuper White Bright LED, big Beaming Angle(60*150°),the rectangular lighting shape, without extra lens, Super Bright LED(130-140lum/W), Low Light decay: only 4% after using for 10000 hourscontrollerGuolu patent ...