By Ross Brooks, Source: PSFK

Watching the sands of time slip through an hourglass is a hypnotic experience that can provide hours of entertainment, but Brookyln-based designer Danielle Trofe has also found a practical use for all that falling sand. She designed a collection of LED lamps powered by the kinetic energy that are not only a perfect off-grid solution, but a great way to reduce the amount of energy consumed by lighting appliances.

Available as either table or floor lamps, they both require a human touch to flip them over so the falling sand can generate energy by passing through an internal mechanism. The floor lamp is suspended and rotates on a hinge to make the difficult task of flipping it easy for almost everyone. The table lamp uses a similar principle, but features a fairly different design as you can see from the pictures.

Read the rest at: PSFK