For the first time I was surprised. In contrast to the energy-saving lamps previously used the light is there now in full brightness. The light color is pleasant. Even a little brighter than the 9 watt energy-saving lamps used previously. However, (definitely more) fell out after about 2 weeks, the first LED lamp, after a further 2 weeks, there was the second play of light. The reason was found quickly: During installation I had probably applied a little too much soft power; Then the expansion of the lamps I noticed against the connection nipple. My Fault? Anyway, I was now curious how it looks well inside the lamp. So, cover glass removed (goes relatively easy) and taken apart. What can I say, composed the nipples again soldered lamp and everything back in butter. Of course I looked at the circuit, this I may venture an opinion, constructed minimalist, clean and functional. A power rectifier, a capacitive resistor, two discharge resistors for capacitors and that's it. The LEDs connected in series are operated at about 93 volts. Eben, simple and functional! Due to the circuit maybe not dimmable.
