Originally Posted by ItsJustMe

http://www.bikeforums.net/showthread.php?t=588853

The guy should know how to measure lumens, given his background.

But regardless of nattering over numbers, the truth is that this is a well-constructed light that puts out PLENTY of light for just about any bicycling activity. People riding technical high speed downhills in the dark might want two on the bar and one on the helmet. For most of us, this is fine.

Even if the more expensive lights put out another hundred lumens, they're still not worth 5 times as much.