Now it is really weird. The parasitic drain depends on the ambient brightness.
The current of 1.88 mA drops to 40 µA after some seconds, but only in a dark environment . The light did not do this current change during my first measurement (duration 2 min). I have no idea what triggered the change in the driver’s behavior.
Anyway, if the light is stored in a brighter environment (1000 lx) the drain goes up to 0.33 mA, and in sunlight (over 100000 lx) it sometimes jumps over 1 mA. This is caused by the IR sensors. They induce a current which is generated by the ambient light.
So, practically (failing the redesign with the second dial instead of IR :-), the @AK-Adventurist’s idea of covering the IR sensor with tape makes even more sense?
Just to make double sure: that happens when the IR sensor should be definitely off, as in after breaking the circuit and never triple clicking on it since?
Yeah, but this eliminates one of the key selling points of this light.
Without IR it is just a headlamp with interesting dial switch.
To be honest, I’m not really interested in this lamp anymore. The LEDs used (tintshift is getting really annoying, Luminus should slowly get their phosphor mix ready like other manufacturers did already several years ago), the missing 660nm photo/deep red LEDs, the strange driver with the weird mode-dependent mode memory, plus the high parasitic drain, which is also brightness-dependent and drains the battery in a short time depending on where you store it (since I don’t know why the light only drew 1.88 mA in my first measurement, this could possibly happen again and drain the battery faster). IR gesture control works in principle, but in my opinion it’s more of a gimmick than a useful feature.
The idea behind the lamp is cool, but in the end Sofirn was perhaps too optimistic in what they wanted to achieve with it.
This happens right after putting the battery in and closing the tailcap. This is independent from any activation of this IR feature. I assume, this IR control feature will only be turned on via firmware. The sensors are probably always on, only when the feature is deactivated the MCU just ignore the changes in current/voltage of the IR sensor. This would explain the strange fluctuations of the parasitic drain depending on the ambient brightness without activating this control feature.
As @koef3 reported here the black sticker at the IR end partially came off - in my case without any heat application. And the curiosity took the better of me and I opened up this end to see what’s inside it :-). Here is what I’ve seen:
The surprising thing to me was that there are 4 o-ring gaskets there: one on each IR emitter and receiver, one between the plastic cover and the aluminium locking ring, and one between the aluminium locking ring and the tube. So in my mind, this end is quite waterproof. To that end, Sofirn started calling the front rotary dial ‘Hall’, so perhaps the lamp is more waterproof than stated?
