In most homes, lighting accounts for 10-15% of the electricity bill. You can save up to £10 in a single year by replacing a 100 watt ordinary bulb with an equivalent energy-saving bulb.
Energy saving lightbulbs
These are known as Compact Fluorescent Lamps (CFL). They use about a quarter of the electricity of the older style filament bulbs and they can last up to eight times longer.
There are several different shapes and sizes of CFL to suit table and standard lamps, as well as ceiling and wall light fittings. They come with the same choice of bayonet or screw fittings as the older style filament bulbs.
To ensure value for money, the bulb you buy should state that it will last for at least 8,000 hours. Energy saving light bulbs should be used in areas where they will be left on for long periods.
High frequency ballasts for fluorescent tubes are more expensive, but they do avoid flicker and can save you a further 15-20% energy.
They are even more efficient than energy saving light bulbs and are particularly suitable for kitchens, halls, workshops and garages