... High luminous effciency, Up to 80% energy saving2)Excellent color rendering T3 halfspiral energy saving lampsPower(W):11W,13W,15W, ... instantly in low temperature and low voltage condition2)excellent 80% energy saving ,green light protect enviroment3) No noise,no glimmer ... lighting products to replace common metal halide lamp and mercury lamp5)Application:Markets,house,hotels,offices,factories,ect.6) ...