The brightness can be adjusted in three levels (100% - 40% - 10%) using the wall switch (conventional wall toggle switch) to create the desired atmosphere at all times. Switching on: When first switched on, the light shines at 100% of its output. Second level: Switch the light off and on again within 2 seconds to reduce the brightness to 40%. Third stage: Repeat the process to dim the light to 10% of its output. For optimum use of the dimming function, switch the light on and off within an interval of less than 2 seconds to switch to dimming mode. Please note that the dimming function has no memory function. This means that the light does not save the last brightness level set after it has been switched off completely (e.g. disconnected from the mains). When the light is switched on again, it always starts at 100% brightness.