The light output is comparable to halogen lamps and also with the "color" (warm white) I'm satisfied.
The light makes the objects in the display case act really high.
But of course the best advantage of these lamps is the power consumption, which is only one tenth of the consumption of my previous lighting. Since you can save quite a bit if you eg. Several rooms umrüstet.
The only what to look for are the matching transformers, but also this is a feasible task that pays off.