Is this different technology? I have one of these but haven't used it in years. https://techcrunch.com/2010/07/09/solar-powered-toothbrush/ https://techcrunch.

Is this different technology? I have one of these but haven't used it in years. https://techcrunch.com/2010/07/09/solar-powered-toothbrush/ https://techcrunch.com/2010/07/09/solar-powered-toothbrush/