Last year, a couple of MIT grads took to Kickstarter to raise production funds for their just-about-everything-proof bicycle light, the Defender. Made mainly from a solid block of aluminum, the light was reportedly tough as nails, waterproof, and very theft-resistant. It was also designed to look like the cylinder of a revolver. Well, the Kickstarter project was a success, and the light is now available for purchase. I got my hands on one, to see if it actually lives up to its makers' claims.