The British summer isn't known for it's scorching hot days but this portable desk fan is a perfect illustration of solar power to both curious child and gadget-geek alike.

A simple easy-to-assemble construction of perspex panels, motor and mini solar-panel, the desk fan is a great way to circulate the air at your office desk or to cool your face whilst sunbathing at the pool. Portable, lightweight and of course, batteries-not-included, this solar fan will keep running all summer long through those long sunny days.