There are two cool white dropins for the Javelin from Dereelight, the XPG-R5 and the XRE-R2. The difference will be the same as for other flashlights :
- the XP-G emitter has a larger emitting surface, thus less surface brightness and less throw, but a bigger hotspot and more overall output - LUMEN
- the XR-E emitter has a smaller die, thus more surface brightness which will result in more throw - LUX. The overall output (LUMEN) is less
As you have now also 2 different reflectors to choose from, the choice will be more difficult as SMO always means more throw but a less homogenous beam and probably artefacts (Cree rings, donut...) and OP means a more homogenous beam, but less throw. You are looking for BEST throw and GOOD spill, which is impossible to say it straight...
- SMO with XR-E --> best throw, least spill, most artefacts
- OP with XR-E --> less throw, more homogenous beam, still artefacts possible
- SMO with XP-G --> bigger hotspot, good throw, maybe artefacts
- OP with XP-G --> least throw, most homogenous beam, no artefacts
I only know the last one for sure as I have it, my brightest AA light, I use it with the extender (3xAA), very impressive for sure!
I guess you should take either the XR-E with OP or the XP-G with SMO. No idea which one has more throw and the best beam though, for me both are obsolete, I took the XP-G with OP as I like bright and homogenous beams, I have a DBS XP-G and an SST-50 with SMO if I need throw. The XR-E with SMO will surely be a good thrower as well, but also have some weird beam artefacts for sure and probably lack some spill... :shrug: