Knog’s claimed battery life for the light is two hours of run time on ... giving good advanced warning of obstacles. It's a different story once you get into the unlit roads however.

Date Announced: 19 Dec 2011 Oy, the leading LED aviation obstacle light manufacturer, launches the world’s first fully battery-free solar powered obstacle light system for low-intensity lights. This ...

Opting for battery-operated lights and solar power Diwali lights instead make the job way easy. You can decorate the way you want without worrying about power source or a wall socket. Also ...