I’ve got one of them… bought from the british magicshine lot.
Very usable light, floods the whole of the front of the bike with light which was plenty enough for my summer nightriding (11pm+) even on the dimmest setting.
Not tested battery life extensively yet, but with the smaller (non-enduro) battery pack, the battery life indicator went from ‘green’ to ‘blue’ after about 1.5 hours on medium brightness.
I’ll be out again tonight and will test it some more.
I have no idea about Lumens since these are my first LED lights – previous lights were some ancient electrons with MR11 halogen bulbs.
Dave