Rollei LUMIS Mini LED RGB Mode D'emploi page 39

6. RGB mode
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Press the mode button [9] shortly to change between colour value and
brightness. The number with a black background shows which mode
you are currently adjusting. With the mode keys [8] you can change the
values. The colour values can be adjusted from 0 – 360, the brightness
from 0 – 100 %.
a) Colour value
b) Brightness
c) Power
a b c