While hunting for my ultimate EDC flashlight, I came across the Klarus Mi1C Ti.
It is small, convenient, has an acceptable interface (long pressing to turn off is a bit of a nuisance but not a deal breaker), lots of little perks etc.
The only thing I would want different, was a warmer, higher CRI emitter than the Cree XP-L HI it comes with… But since this little gem is easy to open, I swapped the emitter with a Nichia 219B sw45.
The beam patern is right for me. A lot of spill and a decent hotspot. All nice and gradual.
If only the world was so good… Alas! The flashlight is behaving a bit odd. It steps down in a few seconds when I turn it on. If I step it back up a few times, it works! When it gets warm enough, it works fine. I tried a different (micro usb rechargeable) battery, by Fenix, and it seems a bit better, but not much. The light sometimes flickers, which is strange as it is supposed not to have a PWM driver.
Is it possible the driver cannt handle the Nichia 219B? Does anyone know why this is happening and how it can be fixed? I haven’t tested much, but I think when the battery voltage starts to drop a bit, the flashlight works fine. It definitely works fine when it is hot.
Any insights will be very much appreciated, as this is, in any other way, a very good EDC light for me.