As my collection grows I’m finding a sticking point with more and more lights. Consistency of the output. And I’m not just talking about if a light is regulated or not, for instance my SK68’s have a fairly stable output on either NiMH or a 14500 only notably dimming heavily at the very end. In fact I have no issue with these being direct drive at all.
My issue is with single cell lights that are driven hard but must fall out of regulation quite early.
To list some culprits:
-BLF Trustfire Mini-01
-Solarforce XM-L U2 drop in (when used with 1xRCR or 1x14500)
In all of the above cases a fresh off the charger battery performs very well in them. But after a couple of days use the high modes become much dimmer. For me this is two points of concern:
-Actual total “on” time is relatively low
-The fact that the light output dims far more dramatically than my non regulated SK68’s.
I’ve noticed it on some of my 18650 lights too such as my Ultrafire XM-L T6 p60 drop in, the above mentioned Solarforce XM-L U2 drop in and some others. Although they do offer higher output for longer, but still the drop in output is noticeable and can happen quite quickly.
Oddly I’d say it’s more noticeable and worse than my Crelant V9CS which isn’t even regulated on an 18650.
So what’s my point?
Well is it that you do get what you pay for?
On the flip side I have a Klarus (16650 or 2xRCR) and an EagleTac (18650). Both of these seem to maintain almost the exact same output (visually) with no noticeable dimming at all, right up until the point that the cell can no longer maintain high and the light will drop to Mid. I do admit these are XP-G and may not offer the same total lumens as some of the above XM-Ls.
So my observation is that my ‘premium’ single cell lights massively out perform all of my other lights in terms of regulated light output. And I think I actually prefer non regulated lights over the poor regulation of things like the BLF Mini.
I would say on lights that can support 2xli-ion batteries (Crelant V9CS/Solarforce XM-L U2) they perform much better on the higher voltages offered by two batteries.
ok enough of my ramblings….
Anyone else noticed similar?