I see Nitecore is coming out with some sweet looking headlamps (the NU series). http://flashlight.nitecore.com/product/nu20-cri
The lightest appears to be the NU20 at 47 grams linked above. Petzl has had the fine E+lite available for years, and it comes in at a remarkable light 27 grams. Are there any other real contenders for a high quality superlight weight headlamp out there?
Check out zebralight AA and CR123 headlamps, they have the highest lumen-weight ratio.
These are listed as 30 grams: https://www.fasttech.com/products/1602/10019906/4217200-authentic-manker-dw-7-led-headlamp
I have a couple but as am out traveling I can’t verify.
I’ll need to add the Fenix HL05 to the list at 19 grams with 2 batteries (13 grams without), but I haven’t tried one yet. Anyone?