HA11
flashlight.nitecore.com
The NITECORE HA11, Multipurpose Ultra Lightweight AA Headlamp, utilizes a dual-core UHE LED to achieve ultra high luminous efficiency and a leap in performance, with a max output of 240 lumens, a max throw of 90 meters and a runtime up to 75 hours. The 38g (1.34 oz) ultralight weight and compatibility with AA/14500 batteries, make it applicable to various activities.

For those not familiar, the HA11 is a small Nitecore headlamp that uses AA-sized batteries, reviewed in detail by Parametrek here:

http://parametrek.com/blog/ha11.html

The reviewed version (the same one I have) had a shock cord headband, and I’m pretty sure it couldn’t run on 3.6v, or at least wasn’t advertised that way. So I only run it on Eneloops and L91 non-rechargeable lithium. Being able to run on 14500 is a new upgrade. I don’t know if I like the new headband but it’s interesting. Also, I think they have reprogrammed the brightness settings somewhat.

If anyone is in contact with Parametrek, can they let him know about this? I don’t post on Reddit these days. Thanks.