A lot of posts, but none mentioned that an XM-L will only put out around 1000 Lumens in optimal lab conditions, meaning, as said above, counting for heat/glass loss, a single properly driven XM-L at full power will give you around 800 Lumens and that will get less the more leds you add to small light due to the heat issue.
That figure would probably drop to around 300-400 lumens max each for any light with more than 2 leds.
Usually when the Chinese start selling/advertising stuff, the figures are only 10-20% inflated, but all it takes is for one of the liars to up the figures a bit and then everyone joins in, and then you get the stupid figure we’re on now.
The problem is, is that it works for the less informed buyers, so they buy the light with the biggest number.
As for saying that there are fake Solarstorm/Magicshine lights out there, do you guys not understand that those lights ARE the fakes?!
The Chinese rarely design stuff themselves, they wait for companies around the world to design and make them, then they just copy them and think of a stupid name to sell them under (it usually takes a few trys to find a stupid name that buyers like!).
There is probably very little difference between all the similar Chinese lights for sale (head unit only), only the speed of manufacturing. The ones that last longer are probably the ones that have had a bit more time spent on building them and making sure all the screws are tight and there is heatsink in all the correct places.
The battery packs are where you are better just making or buying your own, see my reply here.