Hey!
Wow that looks... Bright but a bit dangerous!
Can you give us a description of what we see in the pictures? I see a heat sink with a fan and a COB, a big ol' pot with a fan in the bottom. What are you using for a driver, COB, etc?
I like what you are doing but want to be sure you are safe!! Lots of water and stuff around a garden. I am a big DIY type and cobble together all sorts of things so I love to see what folks are conjuring up!
Have a hit
Peace and happy tinkering!