This is a box to make a small grow light, with either a 2:1 or 5:3 ratio of red to green. Theoretically the big one with 6 red LEDs should work with a 12V supply, but in practice, it didn't light very strongly at all. I'm including a 12V one. Your diodes will likely vary in forward voltage, so you'll have to do the resistor calculators on your own.
It has a slot for a regular tiny JST connector which can be glued in, and a small chamber for connecting your wires.
I'm also including a stand. The stand was something I quickly cobbled together, and isn't great. You'll likely want to use putty to make sure the lights stay put if you decide to print it. The stand also requires an M3 screw to put together.
The case itself requires 2 M3 screws as well.
You can flip the lid upside down if you want to put the supports in the screw holes instead of on the sides.
Here's a video of me wiring up the electronic parts.