Light switches are becoming wireless, but the thought of another battery operated device is just painful. With EcoHarvester’s Ecoswitch, you simply turn the knob until it clicks, which generates enough power to transmit the on-off signal.

The Benefits of EcoHarvester

High Power

One generator produces 800 µJ per click for a light switch, allowing useful operation for mobile applications.


Low cost assembly. Does not require expensive thin film process nor high precision machining.


The thin form factor of our generator is perfect for wireless devices. A light switch with only a 4mm thickness can be easily hidden in a non-intrusive switch panel.


EcoHarvester is a technology leader in miniature scale energy harvesting devices and the winner of UC Berkeley Venture Lab prize and NASA innovation prize at Rice Business Plan competition. The company has been awarded an SBIR grant by the National Science Foundation.