So i'm in the middle of putting a (2) mau5 kits together and all is going well. I ordered a great junction box from robincnn at northern lights and the only thing i'm trying to 'dressup' the 18gauge wire that goes from cobs to my junction box, I mean they are very small and i want to run them through a cable gland on the junction box. Is there something , like sleeving, to increase diameter to securely fasten in junction box. I saw a great setup on "Diy cob pics" section, and reached out but havent heard back as of yet, I suspect he used heavy jacketed stranded wires to daisy chain cobs , and insulation appears to be the size of a standard 110vac cord. anybody have a suggestion, see pic