Compact Flourescent Lamps (CFL)

These are the ones generally referred to as low energy lamps. They contain fluorescent tubes which are filled with vapour that emits ultraviolet light when electricity is applied. The tubes have a coating inside that turns the ultraviolet rays into visible light. They are based on proven technology and consume much less power than incandescent lamps.

Early versions were slow to light and tended to be large and ugly – these issues are now being resolved and lamps are getting smaller and much more efficient. It’s not all good news though as despite what you might hear the light output from a CFL may still be less than an “equivalent” incandescent and there are still environmental issues in terms of end of life disposal. Because these lamps contain circuit boards they are unlikely to ever be as small as halogen or incandescent lamps.

The key to choosing a good low energy lamp is to check the light output and efficiency rating – an 11w ”A” rated will give more light than an 11w “B” rated. All lamps should carry an energy rating on the packaging.

One great advantage of these lamps is that there are now a range of shapes and styles available and whilst they may not be as bright as Halogen lamps, they are quite usable and are available in a range of colour temperatures. Prices have also come down significantly over the years and they now offer excellent value for money.

Click on the image to download a PDF information leaflet

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