I used this light bulb ... 3 weeks. Indeed it is already dead, I light the lamp ... and clack! She is dead. It's a shame because it was quite nice and much cheaper than its competitors, especially in special offer via Amazon. I regretted only that the intensity is different that one is in color or in raw white for lighting. Indeed, in "raw white" mode intensity was acceptable, it allowed me to read, for once against the passage in one color, even clear, light intensity decrease almost by half ... and then not play with this bulb. To avoid ... so urgently!