The Osram Parathom Classic A Advanced dimmable LED bulb emits a warm white light at 1055 lumens and requires a mere 10.5W to do so, though it produces a light equivalent to that of a 75W halogen/incandescent. This phenomenal efficiency renders it suitable for an array of domestic applications, boasting a considerably improved lifespan, reduced warm-up time and lower thermal output.It can be used in conjunction with a range of compatible dimmers, allowing you to set lights of varying intensities and moods.