This all on same breaker. Left, spliced wires are hot, but do nothing and there's no switch for them.
Wires on the right are on a switch that controls two other lights closer to the breaker.
Can I just removed the splice and terminate the hot wires into a box mounted on the rafter?
i think the spliced goes to these wires, then leads somewhere else?
I forgot to add, and don't feel like editing, always buy the 250 foot rolls when you buy wire because the cost is not that much more overall and you'll have wire left over for the next thing you find.