There are two problems with Fenix AA lights that would make them less desirable in the field:He thinks AA batts will be easier to get, and I want to send him something bright and durable. While the Fenix single cell will be more convenient, the double might be harder to lose.
Any suggestions are appreciated.
Thank you all
This is why one should never judge upon a single user's post or "experience".From my experience, DO NOT get the the D10. With the environmental conditions in Afghan, the switching mechanism will not last a week. It will get stuck due to the evaporation of lubricant and soft spring tension, or sometimes get stuck in the brightness ramping mode. While the piston drive may work well in theory, sorry to say it doesn't work well in ROUGH OUTDOOR usage where the environment conditions are not as ideal such as indoor and urban areas. (I know I'm gonna get some flak from this, but this is my experience and stand fully by it. If yours work well then that's good.)
The DI should be ok, but for durabiity a dependability you might also want to look into a twisty light.
My suggestion would be the Fenix L1D.
I travel all over the US for work. I spend quite a bit of time in Arizona, which has very hot temperatures this time of the year. I've left my D10 in the car, as well as using it outside, with temperatures exceeding 120 degrees, and no negative effects so far. :shrug:Sorry, but why do you assume it was from a single experience? Btw the Afghan air is hot and dry which is worse for the librication which is key for the effective functioning of the piston drive.
Btw I got a suggestion for a twisty too, look into the Fenix P1 could be good. It shouldn't be difficult for him to get CR123 batteries from his QM department.
Is this an issue with the kinds of oils you'd find on a light? I thought the only thing that was liable to happen was that it would get too grimy to lubricate well.It will get stuck due to the evaporation of lubricant
You're buddy won't have any problem finding AA or CR123's in Afghanistan. My Son spent 14 months in Iraq. I sent him several lights. The one that worked the best for him was a huntlight with AA and CR123 bodies. I forget which model it is. It survived everything he put it through including long dunkings in canals.
He also had a Typhoon. He loved the interface but it didn't survive the canals.
Most lubricants should operate well into the higher temperatures. The thin Nyogel 760G for example is rated for -40°C to 135°C (-40 F to 275 F) temperature ranges. Thicker lubricants should have even higher temperature thresholds.Is this an issue with the kinds of oils you'd find on a light? I thought the only thing that was liable to happen was that it would get too grimy to lubricate well.
I'm finding the idea of lubricants evaporating into the air to be a pretty unlikely scenario, unless you're using WD-40, which is designed to evaporate.
Yup, it's 135 C, which equates to 275 F. I think my skin would be burned to a crisp holding a light that hot..Also how likely would it be for the light to reach 135F+ if one would normally carry it in a pocket, in a bag, etc? I wouldn't normally leave my EDC laying out in the open to bake in the mid day sun. It would come out once it's dark, when the temps would be much cooler.