Well, what all do you have for parts? I am sorry, I misinterpreted what you said earlier above #1, I thought you were using 12V with just the Arduino. And I am also sorry about me assuming you didn't know that you could plug it into the wall adapter. Let me just restart... okay, so why do you need a rotary encoder and not a pot? I am just trying to emphasis that one would be easier to code than the other, is it for adjusting the time? I mean, I am sorry that you already knew what a rotary encoder was and I assumed you didn't, it's just that people that are newbies I assume automatically they don't know how to code for Arduino and know very little about electronics, because they just started (hence why they are mainly called newbs). Is this, like, a learning experience or a legit project? And I am also sorry I didn't take your questions so legit. I just need lots of information about your project, like datasheets, websites, etc. I'm cool about the no code ordeal because I can handle that for you, but I just need to know EVERYTHING about this project or else I can't help you. I am new to this concept of the whole "2 pin LED light strip" thing, so I need to know LOTS of information on this subject and your project. Based on what you said, I can try to help you with your project. Do you have a schematic or do I need to make one?