I already have some sebson LED products in use, what quality, light color and price are relevant to all these products unbeatable. Also in this product sebson I was only a little skeptical, but then became convinced of the opposite. I have a about 15-year-old dimmer with this lamp works almost as well as with the halogen spot's previously used. The only difference: The sebson lamps can be with my dimmer not dimmed continuously when you turn on the lamp dimmer LED in small steps becomes darker or brighter. Do not disturb it and when you consider what's here on technology between base and lamp, then was something really to be expected. These lamps I have since about 4 weeks on duty, so you can still make a statement for durability, but I have 2 non-dimmable E14 LED lamps sebson for more than 1.5 years in use, both still work perfectly.