In spite of their high lighting efficiency, the cost of high-brightness (HB) LEDs for commodity applications is not low enough yet to compete head-on with older forms of lighting such as incandescent ...
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 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback