With more coarse thread is better, interface to reserve in advance before woodworking? Also need to be buried in condole top, wire inside the wall?
Had better use soft wire, good construction. Main line with 2, 5, a lamp need not so thick.hope it works for you
Wire don't need to be buried inside the wall, with a 1.5 mm square copper core Plastic wire all can
Generally 1.5 but suggest you use 2.5, of course, should be reserved by woodworking. In the ceiling above wire don't need any buried inside the wall but wear tube. Hope useful to you
