... Energy Saving Lamp: Low power( 11W, 15W, 18W, 20W, 23W), wide voltage range(AC 100V~230V), small and delicate figure. Article name: T2 6U Energy Saving Lamp ... Power: 11W, 15W, 18W, 20W, 23W Diameter of Tube: 8mm Input voltage ... or insert card Outer packing: 50pcs per carton T2 6U Energy Saving Lamp