Just recently purchased 2 Nitecore MT2a flashlights. I purchased both of them from different places and noticed that they have COMPLETELY different tints to them. One looks really green and the other has a purplish blue tint to it. Both of them are the same light, same specs, same emitter.. Is this normal for two XP-G2 R5 Led's to put out two completely different colors? Also, the one that looks green has a BUNCH of rings in the beam. What's going on?