LOL!!! Yep, that's the one! I first saw the things in one of my brother's "magazines" I had stolen from him when I was pre-teen. Built a modified unit a few years later...and mine worked incredibly for a few plants.
My chamber is designed slightly around their basic idea, but much larger...
I found a few Sour Diesel Haze - Auto seeds I had bought back in 2016, but was afraid to grow back then, due to legalities here in Arizona. We've since voted to legalize recreational, (YEA!!!) so I had to have a go at it!
Soil is Dollar General special - (hehe), blended with potting mix I had...