versions of these did not last that long, and also in some cases took a long time to warm up meaning that the room was gloomy for the first minute or so after the light was switched on.
now that's no longer the case there is no reason not to use these energy efficient lightbulbs. they will save on energy because they are specifically designed to use less energy than the old style of light bulb.
using these around the house is also good as they now can last around ten times longer than ordinary light bulbs. that means less changing, less waste, and of course as they are low energy they 