The lamp itself is doing what it should - shine brightly. The build quality is decent. I only had problems when changing various Leutmodi. Sporadically a stage is skipped and only for very fast power cycle the light intensity changes. When it comes, the gradation of light intensities is so far fine. The last setting is not automatically selected again when switching on again, but has to be (as with almost all small lamps) again set manually I would have only have wished for a belt clip as an alternative fixing.
Conclusion: Strong lamp as a key ring with a good price-performance ratio.
