... ; T3(9-10mm), 110-230V, 2700K/4000K/6500K, 8000H high quality. half spiral energy saving lamp:Power: 9W, 11W, 13W, 15Wtube diameter: T3(9 ... to the long-term development, our company not only enlarges output and introduces advanced equipment, but also adopts a set of ... . We have CE&EMC, RoHS and ISO9001 certifications. half spiral energy saving lamp