In article , "Dave Plowman (News)"
writes
In article ,
ss wrote:
On 03/12/2016 12:19, Dave Plowman (News) wrote:
Average family living in an average 3 bedroom family house using the
average amount of electricity.

They change from all tungsten lighting to all LED.

How much money would they save on average per year on their leccy bill?

Too many variables to be accurate but as a rough guide I would say if
you have current 60w and move to say 12w LEDs then the lighting part of
leccy bill would approx a fifth of the cost (not including the cost of
the LED bulbs)

Snag with that is it's near impossible to know what proportion of your
leccy bill goes on lighting.

Well you asked the dumb question in the first place.
--
bert