I realize SureFire has their detractors, but my E1B Backup is the best light I've ever used or even seen. It was a bit steep at $139 but the vendor (Battery Junction) included 24 extra batteries. Even though the price has now risen to $160 I'd probably have to buy another one if I ever lost mine. It's among the most bomb-proof and well designed products of any kind that I've ever used. cool
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman