Best headlamp indicator I’ve seen so far! I was thinking about the HC33 battery indicator some more and found that it you can check the voltage while still wearing the light! Not many headlamps can claim that. Very neat feature. Also answered a couple of other questions at the end.
Video Review: https://youtu.be/XP9FGHGgog0
Video Beamshots: https://youtu.be/4G7ZyeviqVc
Blog Review: https://civilgear.wordpress.com/2017/10/25/nitecore-hc33-flashlight-review/
HC33 UI Diagram: https://civilgear.files.wordpress.com/2017/10/nitecore-hc33-user-interface-ui-civilgear-v3.png
HC30 Full Review: https://civilgear.wordpress.com/2016/05/12/nitecore-hc30-headlamp-review/
My Blog: https://civilgear.wordpress.com/
HC33 on Amazon: http://amzn.to/2gRIv3X (affiliate, no extra cost to you)