Originally Posted by somnambulant

Did you see the burntime charts for the Princeton Tec systems? The Switchback-1 does 4.5 hours on high (75m distance, according to their chart), the Switchback-2 does 5.5hours on high (102m) and the Switchback-3 does 6 hours on high (113m). Pretty crazy. 2-hour quick charge too, and it comes with a 12v adaptor for use in a car power socket. Seems great, assuming they work well!