A "Green Power" certified switch is a wireless switch that does not require a battery to operate. There are several differences between a Green Power switch and a "classic" wireless switch (which operates using a battery).
1. A Green Power switch has a button on its rear face, unlike battery-operated switches.
2. A Green Power switch does not have any LED on its button, unlike the majority of battery-operated switches.
3. Lastly, on the rear face of Green Power switches, there is an inscription indicating that it is Green Power. This inscription consists of a leaf icon containing a lightning bolt, with the mention "green power" to the right of the icon. It is placed in the middle of the rear face of the switch.
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