DEF is DARPA Experimental Flashlight. (DARPA Project now ended)
PKEF is PK Experimental Flashlight.
These PKEF's are Special Limited Editions - 200 made total.
World-wide distribution to interested SureFire Dealers (I believe).
There are three versions of the PKEF (A, B & C).
PKEF-A (eight, 5mm Red LEDs / low beam white / eight, 5mm Green LEDs)
PKEF-B (eight, 5mm Red LEDs / low beam white / eight, 5mm Blue LEDs)
PKEF-C (eight, 5mm IR LEDs / low beam white / eight, 5mm Blue LEDs)
50mm (2") diameter "Turbo" bezel. LuxeonV behind a TIR optic main beam.
sixteen 5mm LEDs surrounding it.
These all have two-stage clickie TailCaps. The dial selects the low beam.
If the low beam is selected as one of the 5mm LEDs sets then it will remain on when the high beam is activated (just like the A2).
The 5K and 8K represent the colour temperature of the LuxeonV - 8K being blue tinted.
I understand that at the same time as these PKEF's were sent to Dealers they could also get Kroma-MS with the body featuring PK's logo (this body is the same as used by the PKEF - I guess they etched more than they needed for the PKEF's so they used them up. BTW, this body is the same as used by the U2).
There seems to be stories of other variations floating around. I have not been able to confirm any of these. 妖......你吳翼中文有卵人色体 妖......你吳翼中文有卵人色体
time1200 发表于 2011-4-6 00:10 http://www.shoudian.org/images/common/back.gif
等呀水手哥嚟譯嘛, 佢咁卵叻, 等佢譯咪得囉 本帖最后由 la453075 于 2013-2-7 17:58 编辑
color temperature
Dr.eye 譯典通
ph.片語
【攝】色溫 (色溫是用來量度光或光源顏色的一種量度單位, 單位用K 表示)......5K?8K?http://ts1.mm.bing.net/th?id=H.4673681217880952&pid=15.1 啊。。。剧毒。。。{:3_106:}
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