Use infrared remote control to realize dimming LED. This is of course the most ideal solution. It can switch lights and use PWM for continuous dimming. The disadvantage is that the cost is high, there is no uniform specification, and it can only be used for high-end residences.
In fact, we should come back and think about our main purpose of dimming. All the dimming purposes mentioned above are to meet the needs of people at home with different light intensities under different occasions. For example, it may be darker when watching TV, and brighter when reading a book. Most of these are in residences. Few offices, shopping malls, factories, and schools install dimming lights. Moreover, most of these places are equipped with fluorescent lamps and energy-saving lamps, and it is impossible to dimming or continuous dimming.