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 ...

This post introduces the design of a little solar disc light. It is based on a handful of electronics components. By “solar disc light” I am referring to a compact light source in the shape of a flat ...

This solar birdhouse light is an economical circuit of a mini solar lighting system circuit is presented here. At the heart of the circuit is a mini 6V/2W solar panel. Here, this solar panel is used ...