‘A’ class when it comes to energy saving (A+ to be precise) this pack of 2 LED daylight bulbs feature- an Edison screw fitting, 8 watts and 820 lumens. Excellent energy efficiency compared with halogen or incandescent bulbs, lasting for 15,000 hours. With no warm-up time, it’s designed to instantly light up your living space. Pack of 2. 8 watts. 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 6500K. 0.5 pf. Rated luminous flux 820 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.