"Dave Liquorice" wrote in
ll.co.uk:

On Fri, 25 Jul 2014 13:04:08 GMT, DerbyBorn wrote:

An estate near to me has lights that are probably 500 watts and are all
pointing straight ahead. Not sure what they are supposed to be
illuminating - other than the houses on the other side of the road.

Thicko installers, installing during the day. Our little 10 W LED
thing is almost horizontal to stop the thing shinging down the road
and into the eyes of drivers. The cutoff isn't that good though, the
light "escaping" is reduced but not to nothing.


I think the design makes it all too easy to point them horizonatally (which
means that half the light is illuminating nothing useful as it is going
upwards).
I also think that if feeds to ego of some people to feel that they can
illuminate neibouring properties. (Or perhaps some are just plain old
thick)