Whether you’re an off-road enthusiast, a safety-conscious camper, or just someone living in a state with frequent power outages, you should have a portable charger, backup lantern, and emergency radio ...

Keep your family safe in an emergency situation with a hand-crank flashlight that provides light without requiring batteries, ...

The LittleSun is a solar-charged LED lamp design by Olafur Eliasson and Frederik Ottesen. It’s targeted at rural areas in developing nations where indoor light is typically provided by kerosene or ...

These days, we are highly dependent on our smartphones that cannot do anything without them. What if there is no power and your smartphone's battery dies? Of course, there are are power banks that can ...

Here is the simple solution to make an automatic solar powered led lamp. It automatically switches on two high power White LEDs in the evening and stays on for 6 hours using a 6 volt 4.5 Ah ...

Solar day lamps (SDL) are simple and cost-effective. A few examples of SDLs have been described in [1], [2] and [3]. An SDL without any energy storage element suffers from frequent changes in the ...