The IR strip lighting should be wrapped around the edges of the EndLighten acrylic layer. You should cut the IR strip once you have gone around, since it tends to get pretty hot when left in a coil at the end. If you are just building a test setup, tape will work fine to adhere the IR strip to the acrylic layer. Otherwise, I recommend purchasing/building a u-channel frame and adhering the IR strip to the frame. That way your acrylic layers will be permanently aligned and in one simple unit that you can drop into your enclosure.