When an animal can survive for longer, there's a selection for genes that provide longevity, because they can provide a real advantage, Jay Olshanksy, a public health researcher who studies aging, told me last year for an article about the naked mole rat, a rodent that can live for up to 30 years.
This is it, the 5.11 Tactical Series Light for Life PC3.300 flashlight. Unique to this flashlight is that it uses Advanced Capacitors, rather than batteries, to store energy. With a charge time of only 90 seconds and low weight, the Light for Life PC3.300 promises many improvements over conventional power sources. Key Specifications
Battery life is about 4.5 hours on high, and 9 hours on low (18650), 7 hours with AA. Of course this will depend on the batteries capacity. The AAs cannot be charged in the lantern, but the 18650s can via the micro USB input.There is also a USB output for charging phones but requires 18650 batteries. Mode: Hight-Low-Red-Flashing Red. - 180 max lumen and 4.5 hours operating time in high mode. - 60 lumen and 9 hours operating time in low mode. This powerful and ultra bright and durable metal lantern is the best choice for camping, hiking ,outdoor emergencies and more.