Fact is that the ZebraLight H502pr is NOT "deep red"; in fact it is even less "red" than the other red LEDs. The grating setup gives a heavy indication that my eyes are right.
Communicating with ZL seems to indicate that ZL will not confirm my suspicion, and seems to blame the driver.
ZL appears to be overly guarded with communication to the public.
I once inquired of their H53c throw capability. All I got was a denial they had Intensity or throw figures and got a nebulous answer on range in its place.
Trying to calculate the throw myself, I asked if there had been any changes to the reflector/lens geometry. A simple yes or no would have sufficed. No would mean the geometry could be ignored in my calculation. Instead, I was met with and dealt with as if I were asking specific internal dimensions for the possible sake of stealing proprietary information, and denied the appropriate response to my question.
It's not rocket science, and no one will take over the world with flashlight technology. Good grief, if I wanted to steal internal reflector geometry I would have opened up the unit myself and measured it.