Turns off randomly
I have had a great Black Diamond headlamp in the past, so when I lost it after performing excellently for years in all kinds of weather conditions I naturally reached for a Black Diamond again. But this time I was disappointed.
Towards the end of a three week trip my Gizmo headlamp just turned off at random times. I could turn it on right away, but unless I dimmed it it would turn off again within a few seconds. But then the next night it would shine bright again for an hour or so and then the same thing happened - off without warning. I thought it was the cold temperatures, which were in the 30's at night, but on a second trip later in the summer with fresh batteries the same thing happened.
Seems to be a manufacturing error, so I am going to return it.