I needed a light that had a sub-lumen setting, yet still very capable to throw some major lumens for work situations, while powered by the common AA battery. What I found was the ThruNite TH20 headlamp, which happens to be robust enough to serve as an underwater search light for the girls while taking a bath. I have nothing but praise for the little light, though I've only been using it daily for just over a month now, so if things change I'll post it here. I did however personalized it a bit with a ZebraLight glow-in-the-dark silicone holder and a Third Eye Headlamps replacement headlamp:

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