No dimmer on the wall? Or just switches on the wall lamp itself? No problem! These LED lights have a built-in 3-step dimmer. You light the lamp and it shines with 100% brightness, extinguishes and lights up quickly and it lights up about 60%, repeat and it lights up 25%. If you then turn off and turn on after a while, the lamp lights up with 100% brightness as usual. These LED lights have become incredibly popular as they work very well and they also make you save time and money on installing dimmers everywhere.