And then there are the problems with the disposal (mercury) and the health hazards if one so a mini tube should times get broken. Even the manufacturers strongly recommend immediate ventilation of the rooms because of hazardous vapors.
And now there's finally fortunately an alternative: The LED lamps. Priced unfortunately somewhat more expensive (which will hopefully change with rising unit sales and competition), but definitely as bright as indicated. There remains the life because I can not say because I only recently have LED lamps in use.
This special LED Reflector Spot replaces the classic "Philips reflector lamp NR50 40W E14 30 degrees" in a bathroom fitted wardrobe with mirror. At an appropriate classical energy-saving lamp would not have been thinking about here. This LED reflector spot replaces the old bulb properly, lights up immediately and with full brightness and should be distinguished from its neighbor lamp only on closer inspection. The light is pleasant and flicker-free.
If the Spot half as long as the specified holds 25,000 hours which means he übertritfft any classical energy-saving lamp is still by far. In addition, it consumes 4 watts considerably less than a comparable 7 Watt (11 Watt better if you want to really have 40 watt brightness) energy saving lamp.
So far I have not regretted the purchase. Only the almost 10-fold compared with the old price bulb is annoying. If the lamp should last long enough but it could have paid off along with the saved power and the frequent changes saved in the end.
Therefore, first only 4 stars because the price is definitely something to be done to make the product suitable for mass production. And still better than the overly glamorized information on the fluorescent bulbs. Here it would be given the massive deviations (not only subjective, tests in magazines came to the same result) between the statements and the reality actually makes sense legally warranted advance of Lügerei part of manufacturers both in terms of brightness as well as a life bar.