I didn’t spend enough time looking at all the prior comments before I posted that. I thought there was still a plan to string many household type AC-bulbs together. I’m going to leave my earlier comment as-is because I do think 120VAC on CAT5/6 cables is ill-advised.
For running 12VDC and and amp or two, sure. Different story altogether.
For clarity, what is your current plan? Lot’s of T1-3/4 LEDs strung in series/parallel running from a PC power supply?
I just designed and built my own veg lights some of the info in these posts may be helpful: