I have several LED energy-saving bulbs in use and am very satisfied with the Osram. It is a good replacement for a 25W bulb and my feeling is slightly lighter than the 25W standard bulb previously used. It should be noted that the luminous element is greater than for a light bulb, but smaller than in the Philips LED bulb same power. Thus, if there is lack of space in the lamp is the Osram the better choice when the lampshade is not designed so that only one light bulb will fit. That it is not dimmable was insignificant for me. The light distribution is good and the bulb produces a pleasant warm light.