On Wed, 25 Feb 2015 14:01:46 -0000, "Phi" wrote:

snip


They are replacing the cables because LED lamps take less current
for a given light output, so it was necessary to reduce the size
of the supply cables.

Necessary? In what way?

Were the cables so big that the smaller current could not fight its way through
them or it got lost in the "big" cables somewhere?