Where to buy energy saving bulbs

When shopping look for the European Energy Label. Energy saving bulbs should have an "A" rating.

Megaman UK does the widest selection of light bulbs that I can find. Not only do they have bulbs equivalent to the long fluorescent tubes but they also have energy efficient versions of the pin halogen lights that go in spotlight fittings as well as something other sites have said don't exist, dimmer switch compatible lamps ("dimmerable" - don't like the word though!). They list their stockists, helpfully, as DIY stores, electrical stores and hardware stores, although they do say that named outlets will be appearing soon.

The Lightbulb Company sells a variety of energy bulbs, as does Lightbulbs Direct and Low Energy World. Commercial Lamp Supplies doesn't have as wide a range but it does stock Megaman lights and those twist and lock spotlight bulbs. Sorry, got rather obsessed trying to track those down.

Online comparison places like Kelkoo have a wide selection too.