DIY CXB3590 light

[Wendy Zhang]

So I can give rough prices.
Cobs: $44/each
HLG-240H-C700B : $65/each
1" wide 1/8" thick aluminum angle : ~$1.50/ft
Wire and other devices necessary I am not sure, I had it around prior to starting the project.

And here is a quick update of how they are doing at day 31 flowering.

Wow,COB is cost so much, I have a better price of COB LED.