... : Press to switch the changing mode.B: Switch / Pause In M3(Normal white & warm white output),Switch normal white and warm ... at the current brightness.C: Brightness/Speed increaseIn M1, M2, M3, press to make the brightness to a higher level(Continuously ... to a faster level.D: Brightness/Speed decreaseIn M1,M2,M3, press to make the brightness to a lower level(Continuously ...