Spotlights were used to replace conventional 20W / 35W halogen spotlights in the living room. Operating on Busch-Jaeger Taastdimmer and conventional coil transformers without problems. No flickering etc. to detect. Much brighter than 20W halogen and also in my opinion, brighter than 35W halogen. Light color is whiter than halogen, but acts not yet cold.
Dimming However, weaknesses show. I could with above Dimmer (no phase dimmer as recommended by the manufacturer) is not so far darken as halogen lamps.
Strong buy recommendation! Much better than previously tried No Name Goods!