You can do without a head light just fine, BUT sometimes you really NEED a bright light of some kind. Headlamps are heavier because of the head strap design. Probably the best idea would be to shoot for a high efficiency led flashlight with a large reflector. A flashlight with adjustable output would be nice. There are some really nice ones.
Jim crazy
And WD, when I do hike by moon light, I take my Night Vision Gear.
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These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.