In message , Grimly
Curmudgeon writes
On Mon, 15 Sep 2014 21:25:16 +0100, bert ] wrote:

Depending on how many lights on top, of the pole would a scaffold pole
meet the requirement?

Possibly. No great weight involved - we're not lighting up a football
ground!! Thanks for that idea.

A single un-guyed scaffold pole will sway a bit in the wind, with a
light on top.
Not an issue. As long as we can see the sheep and the dog we are OK. But
we can always tie it with baler twine.
--
bert