Nearly perfect! The light color is warm and the light cone is no different from a standard energy saving lamp. Besides, she was at a recent Stiftung-Warentest test among the first. 3 What, however, then it bothers me somewhat, is the extremely bright light that emanates from it. Compared to a conventional energy-saving lamp, the light is unfortunately very intensive and thus almost unpleasant. But that is absolutely subjective.