Button Backlight is White Color .
For A3 8V 2017 - ____
T8/7 ----------- brown -------- T18/10
T8/8 ----------- red -------- T18/14
T8/2 ----------- gray -------- T18/11
T8/3 ----------- purple-------- T18/3
T8/4 ----------- blue -------- T18/12
T8/5 ----------- yellow -------- T18/4
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