On 15/03/2019 15:21, Rod Speed wrote:
Fredxx wrote
Rod Speed wrote

It uses kinetic energy to send a wifi signal to the base.

You were doing well until this point.

Thats what it does. No battery no wires.
https://www.amazon.co.uk/Philips-Per...ob_title_light

So what you are now saying is it uses mechanical energy to generate a
wireless signal.