The only drawback is the delay of around half to three-quarter second. These lamps are to be dimmed to the minimum then back down at us with mechanical phase control dimmers driven which were initially first turned on due to the delay to maximum. Now after some familiarization time and patience they are turned on only and operated to minimum brightness. We also have LED spots of another large and higher-priced manufacturers that are right there when you press the Dimmer. However, in these, the dimming range is not as large as these from "LEDs CHANGE THE WORLD". As good as the old dimmable Glühwendelbirnen but are not well. I would say they are adjustable from full up to half brightness. I am nevertheless satisfied, as this is likely to be a general problem in lighting fixtures based on LEDs although I can not understand it learned, but no longer practicing control / control engineer.
