Gen: The glass domes are liquer glasses..I use them as humidomes for the new seedlings
The 400 is 18" from the canopy..Thats a bit too high and I could go much lower but I need the foot print to cover the whole grow space.

Here's my grow at start 2nd wk veg...If any one has any questions or pointers feel free to post...Everyone who just read this smoke a bowl and have a wonderful night!

W.S.