Functie node Led strip+colors

the nummeric choose the color as. 1 ---> blue and 2---> red
but confirme it when i press the button .
how do you do that ?

led 1--> payload 2
led 2--> payload 4
led 3--> payload 8
led 4--> payload 16
led 5--> payload 32
led 6--> payload 64
led 7--> payload 128

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