Replace your incandescent bulbs with Sylvania CFL bulbs! Sylvania 23 watt CFL Mini Twist Light Bulbs are energy saving and can last up to 7 years. CFL bulbs use up to 75% less energy than standard incandescent bulbs and last up to 10 times longer. They're also high-quality light producers and unlike some CFLs that can be harsh or glaring, Sylvania bulbs provide a soft white light that is not blinding.