The LiquidLEDs 4-Watt Clear Candle LED Filament Bulb 4000K (B22/Bayonet Cap) is the perfect combination of classic design and modern LED technology. It offers both energy efficiency and a classy look, with a classic exterior that conceals 450 lumens of light for just 4 watts of electricity. As a 40-watt incandescent substitute, it's perfect for use in decorative fixtures, and its slender, dimmable candle shape adds a touch of ambience to any space.