Specification: Tube Diameter: ¦ 12mm Supply voltage: AC100V~ 130V/ 50-60Hz AC200V~ 240V/ 50-60Hz Wattage: 15/ 18/ 20/ 23/ 26W Length: 143/ 157/ 161/ 172/ 177mm Diameter: 53mm Color temperature: 2700K/ 6400K Basy type: E27/ B22/ E14 Q' ty/ ctn: 100pcs Life span: 8000-10000hrs Certificate: CE and RoHS. Feature: 1. Less power consumption, saving more energy 2. Suitable for many kind of lighting fixtures. 3. Good substitute for incandescent lamps in all situation. 4. High luminous efficiency , energy saving up to 80% 5. super long life-span 6. Plastic part adopts imported PBT material, excellent fire retardant material. 7. Tube with tri-phosphor fluorescent powder coated, high luminous efficiency and good color rendering index. 8. Integrated, compact and novel in appearance. Application: These modern U shape cfl lights can be used in residences, offices, restaurants, hotels, shops, home, villa, school, building, road and so on.