thomann SePar QUAD LED RGB UV IR User Manual page 30

Connections and controls
13 [ON/OFF]
Button for switching the display off (blackout) or back on.
14 [AUTO]
Activates Auto mode.
15 [PRG]
Activates Program mode.
16 [SOUND]
Activates the 'Sound Control' mode.
17 [SPEED]
Allows you to set the speed of the selected program.
18 [STROBE]
Turns the strobe effect on and off.
19 [+]
Increases the displayed value by one.
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LED-PAR