gofastman
Enlightened
The HL55vn is an awesome headlamp and it really doesn't have any real negatives. The only thing I dislike is the turbo mode is only for 30 seconds and then the light turns off instead of dropping down to high. The light will run on high without becoming uncomfortable until the voltage drops.
I might be mistaken, but if the mode is on high and you activate turbo, it drops down to high after 30 seconds.
I wish there was a thermal step down, or a timed step down that is significantly less conservative, I think 2 min would be just fine.