I bought a set of low voltage Brannam garden lights in their closing
down sale and find there are no instructions in the box. I cannot work
out how to fit the cable to the lamps. The stop on the end of the cable
stops it going through the hole near the lamp. There is a black plastic
screw which seems to slide into this hole but does nothing. I guess it
holds the canle in place. But how do I get the cable in please?