bigchelis
Flashlight Enthusiast
When I had my Surefire LX2 and other Surefire LED based lights I noticed putting rechargeable cells 8.4V input vs. 6V recommended it would always give me the same OTF lumens and the same overall watts which to me indicated it was regulated. With the mindset I went for it and have been using this headlamp now with IMR 16340's and have about 12~15 batteries fully charged and completely depleted them all while working on projects outside my home.
Here is what I found:
The headlamp does not appear to regulate perfectly like it did with my LX2's, but the overall watts stay about the same and still seems to regulate. If it was not regulating with the 4.2V IMR 16340 I would expect 2~4A at tailcap and 5~10 watts of power hence why I convince myself to keep using my headlamp with IMR 16340's.
Here she is:
Here is what I found:
- 4.2V input x .527mA at tailcap for 2.17 Watts
- 3.3V input x .560mA at tailcap for 1.84 Watts
- 3.0V input x .625mA at tailcap for 1.87 Watts
The headlamp does not appear to regulate perfectly like it did with my LX2's, but the overall watts stay about the same and still seems to regulate. If it was not regulating with the 4.2V IMR 16340 I would expect 2~4A at tailcap and 5~10 watts of power hence why I convince myself to keep using my headlamp with IMR 16340's.
Here she is: