The light uses lithium cells (18650s) that I harvested from an old laptop battery pack, so it lasts forever, and it puts out a startling amount of light. You see, I have an LED flashlight that I'm generally quite fond of. This one might be a little bit OCD, GeekDads, but the technical details are at least a little bit interesting, so bear with me. Yes, you read that right: we live so far in the future that even our flashlights contain computers. A modern LED flashlight, on the other hand, includes a little circuit board that consists of a current regulator and a microcontroller. Now, an old-school incandescent flashlight consists of a bulb, battery, switch, and some wire, so there's not much there to tweak or tinker.
That last mode though - the seizure-inducing blinking mode - was a deal breaker. The low, medium, and high modes are nice, though the light is a little too sensitive and prone to switching modes by accident. by quickly tapping the switch, the light cycles between low, medium, high, and (ultra-annoying) blinking mode. The only thing about it that I don't/didn't like was the fact that it was a multi-mode light - i.e.
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