This 12-pack of outdoor solar lawn lights is a real steal. At just $49, these lights—which have been purchased 2,000 times in ...

Dangerous and unhealthy, kerosene lamps are a necessary evil in parts of the developing world that are off the grid. But solar lamps can help. Everyone needs light. After the sun goes down, you need ...

A solar day lamp is a simple, inexpensive device for bringing “daylight” to dark interior spaces whenever the sun is shining. This article provides complete instructions for designing lamps using both ...

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 ...

Better than recycling that old phone battery, it can be put to good use helping deliver kerosene-free lighting to the poor. Reuse is always better than recycling, because it uses way fewer resources.

When the sun goes down over large swathes of the developing world, the 1.3 billion people currently living without access to an electricity connection are plunged into darkness. According to figures ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Solar-powered Christmas lights are a great option if you’d rather skip the hassle of ...

Despite what Back to the Future fans would have you believe, "where's my hoverboard?" isn't a shoe-in for the motto of 2015. "Let there be light" is a strong contender, thanks to this being Unesco's ...