I take this lamp in a ceiling washer. Previously here was equivalent (the equivalent of the same wattage) energy saving lamp mounted. Since the lamp, however, often is in use, I decided this exchange. Compared to the ESL, the LED lamp tends to be slightly lighter than the old lamp and has a much more pleasant light. I can use this lamp, let off the overhead light sooner additionally required. We use them often while watching TV, because it produces a more pleasant light than our ceiling lamp. The bulb starts without delay and is now shining brightly. The packaging was a bit difficult to open at first glance, one has the knack but first get out, it's pretty simple. If the lamp should really take the promised 15,000 hours, I would be very pleased, because that would be in my daily use of 3 hours at least 13 years old.