half spiral energy saving lamp 2,100% Tir phosphor 3,Real power:>85% 4,Lifetime:6000~10,000hrs 5,CE,( ... , cool white and colored3.using 100% troposphere tube,4..up to 80% energy saving comparing with incandescent Bulbs5.8000hours long life and 1 year ... ,Please change it in our office or factory at any time .OEM available : Customer must supply color packing design and seri ...