... T3 full spiral energy saving lamps 1)High luminous effciency, Up to 80% energy saving 2)Excellent color rendering T3 full spiral energy saving lamps1) ... 80% energy saving2)Excellent color rendering T3 full spiral energy saving lampsPower(W):11W,13W,15W,20WDiameter:T3(9mm)Base ... low temperature and low voltage condition2)excellent 80% energy saving ,green light protect enviroment3) No noise,no glimmer,no ...