You guys are comparing Luxeon Stars to 5 LEDs...apples & oranges, eh?
I've got to say that my X5T is very bright and indeed functions as it is designed. Once again, I'll say this, "I have a box full of tools, but never use all of them at the same time"!
And once again...how many of you have seen two Luxeon Stars that are alike? My Reactor is very white, centered beam, (though not as bright as my LS - can't compare to the KL1, "Santa" Mailman hasn't arrived yet!)...Either I received a "good one out of the bunch" or they have improved their product. Everything I'm reading lately, indicates that they are improving. I'm ordering 5 more for gifts.