The bamboo shaped light isnt worth the extra $18 in my opinion…
I believe you can get a $10 off coupon if you register a new account but as of now it’s not showing up in my cart yet
The batteries aren’t propietary, it’s the charging system. I use regular button top cells in my H2R just fine without the magnetic charging function of course. Not sure about the other models though.
Even then, I prefer an included propietary battery than a rubber charge port cover. The only other solution would be integrating a USB charging PCB into the battery like acebeam does, but then the flashlight itself wouldn’t be considered “USB rechargeable”