Yes, or if you haven’t purchased it yet just have RB or Pro Products ship it to them.
AP channels in two different sizes, 10mm and I’m not sure, but think it is 8mm. I prefer lights in the front as opposed to the back. I think it looks more natural so to speak. I don’t like seeing the light bulbs.
I highly recommend the channels. I had LEDs in 5 of my cages before I knew about AP offering LEDs. 2 of my snakes have managed to pull the light strips down and swing on them like a trapeze. It’s a real pain trying to repair that after the cages are already built.