I've been using a Black Diamond Icon headlamp for years; paid about $70 for it.  It's been reliable, well-built, but dim.
Looked around and found the Titan:  http://gemini-lights.com/products/titan  .
It's LED based, and has a 900 lumen output.  Costs, including shipping, $120.  Decided to go for it; significantly less cash than the JetLite, which has been reviewed in this forum.  Arrived a few days ago.
The thing is well built.  Machined from aluminum, it's a little on the heavy side, and requires a separate 4 cell rechargeable battery pack which fits in a pocket, and connects via an extension cord.  It is incredibly bright - even on the low setting, you can't look directly into the beam from 6' away, it's too bright.  It illuminates well enough up to about 50 yards.
Rated to give 4 hours runtime on "high".
It runs a little warm; but the headstrap mount keeps it far enough away from skin that it's not a big issue.  The headstrap is really nice, much nicer than the Black Diamond.  It's comfortable, and you can adjust it for a snug fit while maintaining comfort, and the thing does not slip around at all.
 
The mount itself uses an O-ring to hold the light to the mount; if I have any doubts as to longevity, they'd be focused here.  On the other hand, you can pick up spare O-rings, so, I guess that's acceptable.
I don't like having the cord dangling down; when possible, I'll route that under a jacket.
The big downside: it's made in, and ships from, China.  But it only took 3 days to get here via DHL international, so from a purely consumer point of view, it's fine.
			
			
			
									
																					Gemini Titan LED Lighting System
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clutch
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Re: Gemini Titan LED Lighting System
Bump.
A month into owning this, used an average of 4x/week, usually about 30 minutes per hike.
The only functional downside is that it's very, very bright. If I want to look at somebody to converse, I have to turn it off.
The switch lights up with different color LEDs depending on charge level. Nice touch to remind me to plug it in.
			
			
			
									
																					A month into owning this, used an average of 4x/week, usually about 30 minutes per hike.
The only functional downside is that it's very, very bright. If I want to look at somebody to converse, I have to turn it off.
The switch lights up with different color LEDs depending on charge level. Nice touch to remind me to plug it in.