ENER-J's wireless socket adaptor with a high-efficiency switching power supply has a wide voltage range with excellent stability and durability. A 13A relay. This kinetic wireless socket adaptor is equipped with an in-rush current suppression function, creating a safe and durable product Wireless Kinetic energy switch and wireless socket adaptor can be paired with any combination: a controller can be controlled by a maximum of 10 separate switches, a switch can pair an unlimited number of controllers Control Distance: Up to 20m (indoor) & up to 80m (outdoor)