Lighting accounts for 15 per cent of a typical household’s electricity bill. You can cut your lighting bill and energy use by changing which bulbs you use and how you use them. Houses typically use a mixture of standard light fittings and downlighters or spotlight fittings. Energy efficient bulbs are available for both types of fittings.
The Energy Saving Trust's pages on lighting
'The Right Light' guide (produced by EST and NHBC)
PremiumLight leaflet on choosing lightbulbs
Professional lighting procurement guidelines