I'm not experienced enough to do a thorough review, but my two cents is just buy one, neutral version, with the filter kit. You won't be disappointed. I love mine. The neutral has a nice pure white tint. It's a very bright thrower that can light up a forest... and also becomes a great flood at the flip of the diffuser ring. The feel is good, the clip has a clever tool-less removal design, the UI is good, and it takes 18650's for long life. My only complaints are (1) the rubber tail-stand attachment can't be used in conjunction with the lanyard, and (2) the included pouch is too small if you use the light with both the diffuser and the tail-stand.