Freeplay Wind-Up Flashlights and Radios
Freeplay wind-up flashlights and radios are built around a custom designed, highly efficient alternator. The architecture of this patented system has been developed to maximize the ability of the user to convert human mechanical energy into stored electricity quickly and efficiently.
While the basis of Freeplay's superiority lies in the performance of this wind-up system, Freeplay has extended the engineering excellence to every aspect of the radio. The winder handle is made from tough re-enforced nylon and is designed for comfort and ease of use. The transmission (gear train) is constructed to high manufacturing tolerances from re-enforced nylon and acetyl. The transmission has undergone acceleratetd lifetime testing in excess of 500,000 cycles.
The wind-up mechanism is the world's most efficient human energy conversion system. The winder can be cranked in both directions, and the harder you crank, the more energy you create. A crank level LED lights up to indicate optimum winding speed.