An A+ energy rating, a bayonet cap fitting, 5 watts and 470 lumens: are you ready for these light bulbs to light up your life - or at least your living room? 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. Designed to omit a warm light instantly, giving you that cosy feeling for up to 15,000 hours. Pack of 2. 5 watts. Bayonet cap (BC) 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 470 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.