"A little heavy but ridiculously bright and long lasting"
This is my first headlamp but I got it after a lot of research and I love it so far (I've been using it for night runs). It's got a lot of options to fit just about any scenario and is comfortable despite the battery pack. the only thing about this headlamp that is a little annoying is the fact that there's only one button to control everything but once you're over that this becomes very easy to use and change, dim, or brighten your lighting.
This is the brightest headlamp I have ever used... This is simply an awesome headlamp. If you need as many lumens as you can get, this is the headlamp for you. The icon hasd a whopping 200 lumens! I used it to summit Mt. Pisco in Peru and was very impressed. Here is my brief video review:http://www.backpackersreview.com/gear-reviews/everything-else/87-gear-review-black-diamond-icon-headlamp