I have 30 X LED ceiling pod lights (with orange wire connectors). Lights have small spring clips to hold it to the sheet rock. Do not need the cans, as they will not fit in ceiling (it is close to the eaves). But lamp wires will not reach my j-box.
I purchased some insulated pvc casing wire to extend the lamp wire to the j-box. I cut off the orange connector on the lamp. I skinned all 4 wires (2 from extension, 2 from lamp in a staggered pattern so the white splice and the black splice were not side by side). Twisted 2 whites, soldered, shrink wrapped. Then twisted 2 blacks, soldered, shrink wrapped. Then shrink wrapped "all" the wires with a little larger shrink wrap. Lamp now has a extension wire long enough to reach my j-box. It now looks like it has no splice, and no short orange connector, is smooth and tight. Will this meet NEC? Not trying to hide anything, but you cannot tell the wire coming off lamp has a splice under all the shrink wrap!