I'm excited! I like the LED in both the developed and instrument is turned off as well as in the light phase. The light color is ideal for the envisaged purpose (staircase lighting). It radiates compared to a 50 watt halogen bulb seemed a bit brighter and 'white' without 'cold' to act. At the edge of Lichkegels one sees a slight yellowish color fringing. However, this is the case with most LEDs and absolutely not disturbing.
I have installed 22 spots. In future we will save 90% on electricity costs, ie only 1 hour burning time per day, the lamps have paid for itself after about 11 months. If the LEDs now confirm the promised longevity, then the offer (in 10-packs at a price of EUR 4.49) is unquestionably good. So far, so a strong buy recommendation.