So, I just ended up with a KR4, SST-20 4000k. They have to be the best looking SST-20’s I have ever seen, thought my D4V2 was so much better than my FW3A’s, but this is a tad rosy, very little yellow and no green. Must be FD2’s, have to dig out my FW3A that I put them in for comparison.
The light has a 7.5 amp driver in it and is running Anduril 1. It works very well and properly at 1/150 and I need to keep that working. But, I want to get an auto lock patch on it. So, I could run my FW3A version that has auto lock patched in, but I am not sure it will support this driver. I could go to Anduril 2 from Hank, but I do not want to risk running well at 1/150. I am not going to EDC it until it has auto lock that I can set for 3 to 5 minutes.
1/150 is the lowest output floor, some of Hanks drivers have issues below 3/150. I use 1/150 every night on the D4V2, D4SV2 and now this KR4. Auto lock in Anduril 1 was a user patch that could engage lockout after X minutes, if enabled. I use it on all of my FW3A’s and FW1A’s that I EDC. Requires a reflash. Have smoked a couple of pockets with the sensitive electronic switches. But I really like the switches.
The instability of the lower modes on the newer regulated drivers isn’t a software issue, its hardware. If your light works fine at 1/150 on Anduril 1, it will also be fine on Anduril 2. As mentioned above, newer versions of Anduril 2 use jump start and dynamic PWM on the lower modes to smooth out the ramping so it might actually work even better.