Please note that the 4.000K version is really limited at this time. I'm not talking about hundreds of lights but more likely dozens of lights being available in the beginning. Originally, Wurkkos only wanted to sell the 6.500K 70CRI version but I asked them to also offer a less coldwhite HighCRI version to BLFers and TLFers. Eventually, they agreed to this request. Please regard it as a "test run" to see how it will sell. If the demand for 4.000K will keep on remaining high enough, chances are very good they will offer more of the 4.000K 95CRI version.
I cannot wrap my head around why lights like this WK01, Olight i3T and the Lumintop IYP07 would lack that simple feature which just seems like such an obvious inclusion for any light this small.
Not a real issue at all but just a minor, cosmetical imperfection: The CNC machining or post processing of the head units might deserve a closer look as I found some small nicks on my two samples, see pictures below. Again, nothing serious at all as this can also be found on Sofirn’s C01(S/R) lights, too. Moreover, the clip is slightly warped to one side, not being exactly in parallel to the tube - again, just a cosmetical imperfection for those being too nitpicking as me. After all, it will have no impact on the functionality of these nice lights. Apart from this, both lights are well designed and assembled.
[/quote]
Thank you Lux-Perpetua sharing so many nice photos and details.
we found this minor cosmetical imperfection too , and talked to the factory they said it is difficult to avoid, maybe many people will have such complaints, I am thinking about how to help avoid this problem in the next batch,
Absolutely. The new brown color looks very appealing. WK01 is a great alternative or addition to Sofirn's C01S. Using a constant current circuit was a very wise decision, too. Definitely a keeper, IMHO! :-)
Gonna say yes drivers are different,
Got the WK01 and tried to put the head on a Sofirn PF04, Thorfire PF04 and will not work, head is shorter, threads different depth.
I know people will say “just make a contact ring” but that would not be a good idea as I did put a LifePo 10440 in the WK01 and the modes just do not change and it really did not get much brighter so higher voltage is probably going to kill the driver with no gain, no upside.
Flashlight really works well at the recommended voltage though and the tint is awesome!
Could probably get away with primary lithium AAA which is usually around 1.75-1.80 volts and may see some increase in output.
Do wish it had mode memory, always starts on moon. Sometimes I need it to start on high like in daylight use under car hood etc.
Thanks! This gave me the courage to try an INR10440 at 4.2V in the WK01.
I found it difficult to get it to switch mode from Low to Medium and High while using a 10440. It looked like it was stuck on Medium.
I had to rapidly momentarily press the button forward to change from Low to Medium and High and then click it in. If I tried to slowly click between modes it remained in Low.
The beam looks nice on high with a 10440. It seems slightly brighter than an i3T on High with a 10440.
10440 Low is like AAA Medium
10440 Medium looks 30% brighter than AAA High
10440 High is looks 30% brighter than 10440 Medium
If you run it on High with a regular AAA for a minute, that’s about how hot it gets when running it on High with a 10440 after a few seconds. I wouldn’t recommend using a 10440. Something might burn out…