23W,LUM>65lm/w life time:10000hours color:daylight,warmlight,etc. half spiral,full spiral,T2-T5 different ourside diameter Half spiral tube:23W1)110-130V/220-240V2)LUM>65lm/w3)life time:10000hours4)color:2700K,4200K,6500K5)Ra:82;6)pure tri-phospher7)Tube diameter: T2,T3,T4,T5;8) different ourside diameter from 38mm-68mm CFL GLASS TUBE