Olight Odin IR vs Surefire Vampire

Even if you calibrate for my bias against secondary cells, the Olight Odin IR does not stack up very well against the Surefire Vampire lights. Everybody knows that lumens are a fake number for idiots, but apparently milliwatts can be deceiving too.
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Cromulent affiliate links:
amzn.to/3tAUclG - Surefire M640V (two cell vampire w/ pro mount, same price as the thumbscrew mount but a little more versatile)
amzn.to/3IDEydz - Surefire X300V (pistol vampire, actually works pretty well on a helmet)