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
Capacitors can also be recharged many more times than batteries due to the fact that capacitors do not deteriorate over time and never need to be replaced. The PC3.300 is designed to be recharged up to 50,000 times. To charge the light, insert the head of the light into the charger. Magnets ensure proper alignment of the charging contacts, as well as secure the light. For best performance, 5.11 advises the user to charge the light for at least 24 hours prior to any use. The capacitors can hold a charge for about two weeks. The Light. Head