The LEDs are brighter than a 10W halogen bulb, but darker than the Delock 46293 (3.5W larger diameter). So if you need more light, which was recommended this type. The bad reviews with overheating or flickering in the Delocks I can not understand, because for me are for two years without such problems in use.
But it's really important to make sure that the transformer in the lamp also has a performance area. A transformer which has 50 watts minimum load, the 36W LED lamps just can not drive and the LEDs will probably give up the ghost. -So: Important! the one with the minimum load!
The color spectrum is very similar to that of a halogen bulb. No color cast - just beautiful warm white. One must not confuse here brightness with color.
So I can only good things to say, and therefore there is my strong buy recommendation!