The solar day lamp is a very simple and cost effective way of utilizing solar energy. It consists of one or more solar photovoltaic (PV) panels connected to an array of LEDs. Because it has no ...

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 ...

Billions of people continue to burn dangerous and costly kerosene in lamps to see at night. Start-up d.light design, which aims for no less than to eliminate kerosene around the world within a decade, ...

As designers strive to create a more sustainable future, we’re thrilled to see designs that integrate a variety of renewable energy technologies into objects we encounter in everyday life. This ...

French industrial designer Mathieu Lehanneur has a theory about the street furniture in Paris. “What’s interesting in Paris is that every decade and every century new street lamps appear, but the ...

What is the PV-Pushback-Effect? How can solar day lamps (SDLs) take advantage of this effect? Solar day lamps (SDLs) are made by simply connecting an LED array to a solar photovoltaic (PV) panel. SDLs ...

Although it can be considered as a basic human need alongside food, water and shelter, 1.6 billion people all over the world have no access to stable and safe source of light. It's a situation that ...

Solar lamp posts give your space a romantic, vintage feel without the costly expense of real, old-fashioned lamp posts. You might think that all solar lamp posts are more or less the same, but this ...

The ubiquitous Avon saleswomen traveled first by foot, then horse and buggy, and eventually by car to sell cosmetics door to door. In the process, the company built a global business that now earns ...