They are not inefficient at all.

It depends on your criteria and scale of values.

Clearly, inefficient was intended in its scientific sense, i.e. that of
providing the maximum useful energy out for the minimum energy in.

If you measure it in terms of aesthetic benefit vs. cost employed then
they are highly efficient.

But very environmentally unfriendly. Bulbs should immediately have a scale
of taxes applied in relation to their energy efficiency rating. They are
already rated A-G and it works well enough with cars. I would say no
additional tax for Band A, rising to about 10 pounds a bulb for Band G.

Then all those wastrels who insist on needless polluting the environment
just because they whine on about liking inefficient lightbulbs can at least
pay more than proportionally extra for the priviledge of destroying the
planet.

Christian.