The light is pleasant and not "cold", but just at the edges relatively warm white. Of course the whole thing in a slightly more yellowish direction, but falls only when one pays extremely thereon. In everyday life, it looks almost cozy and is no comparison to the very first energy-saving lamps that have been developed.
The lamp is to keep 30,000 hours and more than 15000x can be turned on. Whether they deliver what it promises, will therefore be reflected in the next few years. Should she go before broken, I will report here.
So an LED bulb contains no mercury fortunately, like other energy-saving lamps. But rather should be discarded after their lifetime in a collection point for electrical equipment - simply in the household waste is no longer so.
In addition, LEDs over time to lose brilliance. Although they are still working, the light little by little becomes weaker, but also I will report, it should be ready.
Conclusion: Successful alternative to halogen lamps!