My Dual Channel D3AA is the The Full Monty:
I have been experimenting with channel 4:
using 3H to change how much Red gets mixed with the white LEDs,
it can create some nice rosy sunset colors
Im really enjoying the versatility of a dual channel D3AA
I experimented with option 3 but it is just a 50/50 mix.. I prefer option 4 because I can set the mix I prefer
I also experimented with Option 5, which has auto ramping of the mix, which seems potentially useful, such as starting with Red and adding white as the output is increased..
In the end I find I prefer to set a constant mix for all output levels, so I settled on Option 4. This gives me consistent amounts of Red in the mix, to suit my taste for a Sunrise or Sunset color.
The Dual Channel D3AA is presently my favorite and most versatile EDC. I added a KR1AA clip, using some solder braid in the tailcap to make up the gap, it works really well. I change batteries through the head.
And added a spacer to solve the light turning off or changing modes, when using the tailmagnet makes the light tap too hard and causes the battery to lose contact with the positive post in the head.
Im also really enjoying the flat metal button.. surprisingly, I have not had any accidental activations.
And with the addition of a USB-C 14500 (with Turbo off), the light is a Total Package