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Nitecore HA23 UHE
The Nitecore HA23 UHE is a lightweight and versatile headlamp powered by 3 commonly available AAA batteries (included), perfect for everyday tasks, camping, hiking, running, and more.
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Understand it first
Land navigation your phone can't give you
Map, compass, pace count, and terrain association — the Army way (TC 3-25.26), for the day the battery dies.
Survival priorities, straight from the field manual
The rule of threes, fire, water, and signaling — what FM 3-05.70 actually teaches, minus the TV drama.
The first 72 hours without power
The order things break in, what the food in your fridge is actually doing, and what $50, $200, and $500 each buy.
Shelter and hypothermia: the three-hour problem
Why the ground takes more heat than the sky, what hypothermia looks like before it looks like anything, and what shelter trades.
The 72-hour kit, item by item
The baseline list with the reasoning attached, what it honestly weighs, and what $150, $250, and $500 each cover.
Staying put: the first month
Bug-in is not bug-out. The water arithmetic, the pantry, the power, and the paperwork for keeping a household at home for about a month.
Field skills: knots, fire, shelter, water, signaling
The five that carry the most weight outdoors, why each one fails, and what this page leaves out on purpose.