I like the round shape, and haven't done too well on my own. Why try and reinvent the 'wheel'... But, I'm sure eventually I'll get it. Just looking for a short cut.
I have everything I need to etch PCboards here at home, and did a few 13 LED boards, but want more light. Oh, these are for 'grow-lights', red and blue LEDs.
I want to make about 6 of them and see if I can grow some vegetables from seed to fruit indoors. I've got about 26 catus seeds started in a window, but don't think they get enough light, and big enough for outdoors yet, so made the small lights.
Anyway, always thought an indoor vegetable garden would be cool, and if the LEDs work well enough, cheap to run too. Growing stuff outside sucks here, drought, insects, animals, and torrential rains (huricane season begins...), not to mention the summer heat.
Anyway, a commercial unit,with 3 of these sized arrays costs around $150.00, building one would cost $30-40...