half spiral energy saving lamp 2,100% Tir phosphor 3,Real power:>85% 4,Lifetime:6000~10,000hrs 5,CE,(EMC ,LVD) ... restaurant, hotels, offices etc, where requires lighting for long time3.high wattage lamps are specially for street, square, parking lot, petrol ... for one year warranty from the selling date ,any bad quality ,Please change it in our office or factory at any ...