An A+ energy rating, a small Edison screw fitting, 3 watts and 250 lumens: this pair of frosted bulbs are ideal for creating a calming candle-lit effect, lasting for up to 15,000 hours. They use the latest LED technology and components to ensure superior light output and to offer excellent energy savings when compared to halogen or incandescent equivalent products. They omit a warm light instantly, giving your room a cosy feeling. Pack of 2. 3 watts. Small Edison screw (ES) fitting. Energy efficient. 10 yrs bulb life. Colour rendering index 80 - this is a scale from 0 to 100% indicating how accurate a light source is at rendering colour. The higher the better. Colour temperature 2700K. 0.5 pf. Rated luminous flux 250 lumens. This is a measure of light and indicates the power of the light emitted. Rated lamp life 15000hrs. Number of switches 40000. Smart lighting information:Suitable for indoor use.