5w/7w/9w/11w with different glass cover,2u/3u ,spiral tube,220-240v/50-60hz ,e27/e14.2700k/4000kl6500k excellent color rendering,excellent light distribution,flicker free instant start.universal buring position5w/7w/9w/11w with different glass cover,2u/3u spiral tube,220-240v/50-60hz ,e27/e14.2700k/4000kl6500kUpdate Date:2011-8-3 20:52:19 Cover energy saving lamp