Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide ...
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 ...
NEW DELHI: If we evaluate the history of LED lights in the last few years, then it can be seen that this technology has evolved a lot. The efficiency of the LED lights have been improved ten folds and ...
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