For lamps with the N1 Light Engine, use the capacitive-touch control on the metal rings to adjust brightness. Tap the rings to cycle through brightness levels, or press and hold for maximum brightness.
For lamps with UNO or PRO Light Engines, use the tactile keypad. Successive taps will cycle through the three available brightness levels.
N1 Light Engine Base Capacitive Touch Switch
UNO & PRO Light Engine Base Tactile Switch
