I did not buy this LED bulb on Amazon, but in a Conrad-branch, but I had already read in detail in Amazon reviews, in which the bulb of Müller section best. At home I put the LED bulb next to a two 7W energy-saving bulbs. Before, I had 3 light bulbs with 25W in the lamp. The positives: The LED bulb looks good (not as exotic as many other LED bulbs), it has at power instantly full brightness (clear, but one also wants an LED) and it is subjective brighter than the energy saving lamps, even if they have reached their full brightness. Now the downside: Compared to the energy-saving lamps, which have a quite warm light, the LED bulb a bit, despite stating warm white still too cold, the light is more white than yellow, which one as in living rooms easily feels uncomfortable. Compared to other LED lamps the color is indeed already better than me, but for the price I think is not good enough.