A replacement universal light bulb. The LED bulb uses less power than a standard light bulb making it a lot more energy-efficient. The bulb uses only 3.1W which is the equivalent of a standard 35W bulb. The bulb is 250 lumens, has a colour temperature of 3000 kelvin giving off a warm white light lasting up to 10000 hours. The measurement of the bub is 54mm in length and 50mm in diameter. Energy rating A.