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arowana said:
Does anyone have experience with this MDXL brand, whether they use real luxeon or only luxeon clones?
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They are most likely to be clones or copies - here's a comparison review I did on a MXDL 3 watt "Luxeon" - with lots of feedback discussion
MXDL 3Watt "Luxeon" 3AAA from eBay
Perhaps not such a "silly" comparison with a Streamlight Scorpion Xenon 2x CR123)
Bright - but didn't seem that much brighter than this S1801 1watt Luxeon 1x CR123
The version you showed in the link has had some negative reports - whereas the one I got seems to be more favorable.
But bear in mind these are "cheap" for what they are - so "quality control" probably is a bit of a gamble.
I consider myself pretty lucky on the one I got - some others have said their beams are better than shown in my beamshots.