... 80% energy saving 2)Excellent color rendering half spiral energy saver lamps1)High luminous effciency, Up to 80% energy saving2) ... Excellent color rendering half spiral energy saver lampsPower(W):11W,13W,15W,20WDiameter:T3(9mm)Base:E27 ... replace common metal halide lamp and mercury lamp5)Application:Markets,house,hotels,offices,factories,ect.6)Warranty:12 months7)Environmental ...