This was a little project to add LEDs to my bookshelf to brighten things up in my room. The LEDs were cheap, I picked up a 16 ft strip of them on amazon (regrettably) for 12 bucks. They are super handy to have around, I’ve already used them for a bunch of little projects like this one. I used a 3A 12V power supply I had lying around which is overkill for this amount of LEDs. They don’t use a ton of power and produce a surprising amount of light. They also don’t get more then a little warm which I was worried about from previous experience with LEDs.