I haven’t attempted to calibrate the temp sensors on mine or change the temp settings yet. I turned them on turbo and verified that output seemed to be ramping down in good order though.
Some additional impressions now that I’ve had my D4v2s for a day:
- Both the battery tube and tailcap are interchangeable with equivalent parts from later model D4v1s. Also the grey anodizing on the v1 and v2 is close enough in color that if you swap tailcaps the v1’s tailcap looks like it was made for the v2.
- I like the v1’s tailcap better than the v2. The v2’s tailcap is longer and heavier to make room for lanyard ring. This probably adds 2-3mm to the length of the tailcap. It’s a great feature to have … if you actually use a lanyard. But if you’re like me and do not, the lighter more compact v1’s tailcap feels better in the hand and pocket.
- The knurling on the 18650 body tube is excellent. Very grippy. The light feels much more secure in the hand than the v1’s smooth body tube.
- The SST-20s are pretty greenish. About as green as the tint in my D4v1 SST20 and much greener than the ones that came with my SST-20 FW3A. However, I am using a UCL lens in my FW3A and the stock lens in the D4v2. I haven’t checked, but it is possible replacing the lens in the v2 might help.
- Stainless steel bezel looks good. Build quality is excellent with no defects noted in either light.
- Tint on XPL HI 4000K D4v2 is much rosier than the tint on my SST-20 4000K version in all brightness modes. As expected, the XPL HI version is also considerably brighter.