The Remington RMHL 2AAA B
BPL reviews and photo are at: http://www.backpackinglight.com/cgi-bin/backpackinglight/reviews/display_reviews.html?forum_thread_id=27607&skip_to_post=231013#231013
About 2.6 oz., including the batts and headband.
What I like:
No fiddling. Push button switch that works with gloves on goes to on-bright, on- medium, and off. You only have to hold the switch pressed to get the flasher.
There are pull down diffusers for white and red light. The light is so bright it stays on medium with the white diffuser pretty much all the time.
Battery life: I walk the dogs almost every night for two miles, or for a little over an hour. Two Energizer lithium AAAs have lasted me since daylight savings stopped, with 3-4 night walks weekly. I don't believe it either, but just got back from a night walk, and the light is not yet beginning to fade. Don't know how long it would go on continous use on medium, because haven't had to try it for more than 2 hours continuously.
Am using the heavier new Snow Peak collapsing globe combo headlamp/lantern light for backpacking now because it is a little brighter than the Remington, and can be hung from a tree in lantern mode to pitch the tent in the dark. But for everything else, especially for an emergency light when dayhiking, the Remington's the one.
I think they are made by another company now, but are probably still available at Amazon.