Ideally, I'm thinking something like the nebo poplite but much brighter (and a little bigger if need be). I'd be using it as my primary bicycle headlight AND as my tent lamp. A well defused lamp is essential as well as a beam with adjustable focus. I hate carrying a defuser separately, but any mods where I can attach a defuser uniformly would definitely be considered. How far it throws and how bright it gets is only a matter of more is more. Obviously decent battery life to use while camping. Rechargeable a huge plus, I'm currently using 18650s in other lights but open to other power options. IT only needs to zoom out enough to work as a good bike light and hiking light. I emphasize throw over flood on zoomies. Thanks for any input.