DIDIOK Wireless Smart Switch take the energy harvesting wireless technology, Wireless switch will generate electricity automatically when you press the switch buttom by turning mechanical energy, heat energy, light energy, etc into electicity. Pls check the following ADVANTAGES comparing with traditional wire switch,

Advantages

Wireless & Moveable
-save space
-control range indoor 30meters, outdoor 150meters
-signal through wall
-no need to find the switch in dark anymore
-easy to check out with the lines