Characteristics and Applications: Spiral shape in design, has excellent Luminous output. Advanced electronic circuit to ensure long life. It is the ideal lighting source for the broad room. The lamp life is 8 times longer than incandescent lamps. More efficicent in energy saving. Applications: residences, offices, restaurants, hotels, shops. Item:S0822 Watts (W):5W/7W/9W/11W Lumen (Lm):220Lm/364Lm/460Lm/550Lm CRI (Ra) ≥82 Lifespan (H):6000H-10000H