... 80% less energy than incandescents.SeriesManufacturing ProcessColor Temperature 7W half spiral energy saving lamp E27 for 2013 ... 1 BST BSTDG12020111EC-1 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W, 30W, 50W, ... CE BST BSTDG12020111SC-2 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W, 30W, 50W, ... Certificate BST BSTDG12020111RC-4 LED Drive & 200W, 3W, 5W, 7W, 9W, 12W, 15W, 18W, 20W, 30W, 50W, ...