Visually, the lights really work perfectly, the vitreous body looks like a typical candle light bulb and the LED string is similar, except for the yellow color in the off state, a conventional filament. I welcome that the electronics are hidden for controlling the LEDs in the base. Also, the light emitted is at first glance warm, what with the specified color temperature of 2700K, but should also be so. The light color play round is based on the uneven application of the yellow phosphorus and is in this type of LED in principle unavoidable. For this, the light output is almost completely to the side - as in to replace candle bulbs.
So perfect for replacing old light bulbs? In principle, yes, but: LEDs are indeed very sensitive to false triggering. Normally a LED expected DC. This is generated by a seemingly very primitive circuit in this product and is hardly or not smoothed. The result is a terrible flicker. In a small lamp which is to brighten only a dark corner, or to make the "somehow light" at the outdoor lighting is perfectly fine. I have the lights but also in a floor lamp next to the TV (the even also flickers) tested - not to look at with! I have screwed in bedside lamps - that gave headaches while reading.
Even the ausgelobte 25W replacement is hardly realistic. My estimate is likely to have a 15W bulb emit the same amount of light. But that's still an enormous energy savings.
My Conclusion:
For the price just so okay, but not more. For emergency lighting effect or good; unsuitable for reading tasks or jobs. Then rather spend one or two euros per lamp more and get some flicker.