I've used up, broke, and abused more than a few of them at work and at play over the years.
A Zebralight is on my wish list, but the last one I picked up is a Black Diamond Spot. If it hold up, I'll get along with it just fine
http://www.blackdiamondequipment.com/en-us/shop/mountain/lighting/spot-headlamp I've been using it to ride my bike home from work at 1 in the morning with the floodie. It's got a serious hot spot, and seeing 70 yards with it isn't a problem. I like the little LEDs for around camp. The red LEDs I could live without. I never got why you'd be worried about preserving your night vision if you feel the need to turn on a headlight??..