Thank you erv! You've enabled me to make my dream Graflex 2.0 lightsaber with this awesome saber card! It's very easy to use and wire. I read your manual back to back and it is well written and documented with a LOT of images that helped me ensure my wiring was good. I opted to use the 2812B LED string in the 144 LEDs per meter configuration, you'll need two as you'll have to stick them back to back. Lots of sources on eBay so no shortage there. For building my blade with a good diffusion and even lighting I used a trans white 7/8" thin walled tube from TCSS. I first removed the adhesive from one of the LED strips and then connected to the 2nd LED strip. I used 126 pixels x 2 overall. I wrapped the back to back led strip with a thin packing foam sheet. Just one layer is good enough. I then used gift wrapping tissue to create a single layer diffusion with a 1/8" overlap in the blade. I used a wooden dowel to guide the tissue into the blade. I simply wrapped the tissue sheet around the dowel and inserted it into the tube. for added padding of the LED strip, I used the clear plastic bag that came with the trans white tube and wrapped it up just enough to get the LED strip from flying around the tube. I taped the tissue sheet to the tube ends to keep it in position. The NeoPixel is awesome, it's bright, you can create an endless combination of customized colors and the NBv4 made it soooo easy to install. It simply worked the first time, period! Love the default sound fonts as well. Keep up the great work, I'm just honored I was able to get my hands on your NBv4!