This Philips LED Ultra Definition vintage 40-watt BA11 filament candle dimmable light bulb is both comfortable for your eyes and enhances the way you see colors around you. With a high color rendering index (CRI) comparable to natural light, you can enjoy full- spectrum soft white light that brings out the true colors of your home. Meets strict criteria for Eye Comfort, a standard developed to measure products against a set of key factors that can impact the comfort of your eyes. All packaging contains on average more than 8% recycled paper and will further decrease. Dimmable warm glow effect, enabling light levels to dim to the warm tones of traditional bulbs. Philips LED Ultra Definition vintage 40-watt BA11 filament candle dimmable light bulb comes with a medium E26 base.