From all my research, I've concluded that Fenix flash lights are the best bang for the buck out there IMO.
The P series specifically it's really good.
They use the lithium's but you can get them pretty cheap online and they last so much longer from my experience then high output non lithium lights.
I have the P2D which is 180 lumens (turbo mode) and my brother in-law has the P3D which is 215 lumens (turbo mode).
Both are awesome lights, great build quality, really good battery life and they also have a couple of modes as well, such as low, medium, high and turbo as well as a strobe light and slower pulse modes.
I plan on getting the P3D next with an add on they offer to hold 3 lithium batteries, giving longer battery life and high output (though I don't recall the specific increase off the top of my head)