... Light effects: 55-65lm/w 3W/5W/7W 2U china cfl manufacturer CFLs are four times more efficient ... 2015/03/26 CE Certificate 1 BST BSTDG12020111EC-1 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W ... 10 --- 2049/12/31 CE BST BSTDG12020111SC-2 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W ... --- 2049/12/31 RoHS Certificate BST BSTDG12020111RC-4 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W ...