CrazyEyes, you need to load the sketch on once. Then, the buttons allow you to alter the parameters that control the lights. So, if you want to change the dimming behavior, you just push buttons on the unit.
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Inconveniencing marine life since 1992
"It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman)
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