... .80% energy saving 4.Longer lif Energy saving lamp half spiral Specification:1.voltage and frequency :220- ... ,50/60 Hz ,2.Power available :7w ,9w ,11w ,13w ,15w,18W,3.85% actual power ,100% tri ... -color powder fluorescent tube ,4.lamp base:PBT 5.lamp holder available:E14,E27,B22 6.color ... 1.High luminous efficiency : 1 piece of energy saving lamp equal to 5 pieces of incandescent bulbs , 2. Instant ...