Affordable, energy-efficient, and simple to install, these small yet powerful lights are ideal for lighting sidewalks, stairs, or other entry points to your home. This set includes six individual ...

The retailer has quite a few of these lights available for under $30, including the Superdanny Solar Outdoor Lights. They normally retail for $40, but for a limited time, you can purchase a pair from ...

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 ...