... , B22 5.Lifetime:6000-10000hr 3U energy saving lamp description:1.Tube Diameter:φ7mm,φ9mm,φ12mm, Power:9W,11W,13W,15W,18W,20W,25W2 ... start, no flick2) With excellent 80% energy saving3) With tri-phosphor powder of light tube4) High lumens, good light maintenance5) With PBT ...