Originally Posted by
RoadTire
Maybe I misunderstood your question: are you asking about the actual manufacturer emitter specifications only, excluding heat sinking, reflectors, drivers, etc? In which case I have no idea.
3% difference in brightness? Who can really see that and does it matter? I suspect a dusty glass lens can cause more loss. Is you approach to this more of a detailed and technical discussion of emitters or a general discussion of practical flashlights for different uses and environments? Knowing which direction you are going might help provide the information you are looking for.
Just looking for a really great light and a general feel for how generic late-model Crees work. For example, one light can go from T6 to L2 or L2-U2 and jump a couple hundred lumens vs how another light (like the Nitecore example I gave) don't increase a bit. I've already got a $20 ebay (basically that Divine light precisely but less graphics) and it's not bad
I should just get a dedicated bike light but consensus is that there are 2 options:
1.) Bontrager 700 (great light but gets hot & no swappable battery) $100
2.) Cygo Expilion 850 (great light w/ swappable battery but they're expensive & mount is not so great) $109 + $32 for extra battery
Thus I search for a more generic option but WITHOUT an external battery pack. I ride w/ an old racer who loves his $26 amazon dual-cree T6 but has an external battery pack. Everyone else I know has older NiteRiders, Serfas, etc.