yeah, those are bayonet fixings.
pretty certain we can get them in screw caps as well
saw, do me a favour, check out this site.
http://www.growshopalien.com/onlineshop/
planning on getting the 250 + 600, 250 for vegging / growing
600 for flowering.
what you reckon, the plan for the designs are the last picture I upped.
look forward to your opinion mate.
thanks for the help by the way
Moley.