diy cob led micro cab grow box

hi all, let me start by saying that i have no intention to get spoonfed (the next time lol) i will do all my research after that, i have just some questions before i start my journey of a cannabis grower :) i'm a complete newbie and i would like to start growing with leds, i watched Gromau5...

Just looking to start a collection of micro/cab cob grow lights. I like the idea of DIY LED lights but there isn't much content to be found on the forums so I wanted to start this thread to see if we could get a collection going. If for some reason you can't post pictures please leave a parts...