Longevity got a star because everyone wants to have an overview right away. The lamps were only about a month old. During this time they work. However, the dimmable part only works so far. As you lower the brightness to achieve a dim light, the bulbs will begin to flicker and continue blinking until they turn off completely. To use low light, you have to fiddle with the dimmer until the bulbs eventually glow steadily. . Unfortunately not always at the desired level you try.