Features 1.This is a wireless GSM controller, which can be used to remote control the on and off of many electrical appliances such as network server, wireless router, TV, lamp, etc 2.Easily control many household electrical appliances through only a text or a phone call 3.Made from aluminium alloy shell, it is easy to dissipate heat and can effectively prevent fire hazards as well 4.Comes with the controller and antenna, and it is easy to install and operate 5.Remote control server, routing, large switch, no longer worry for the accidental fault Specification Features: This is a wireless GSM controller, which can be used to remote control the on and off of many electrical appliances such as network server, wireless router, TV, lamp, etc. Easily control many household electrical appliances through only a text or a phone call. Made from aluminium alloy shell, it is easy to dissipate heat and can effectively prevent fire hazards as well. Comes with the controller and antenna, and it is easy to install and operate. Remote control server, routing, large switch, no longer worry for the accidental fault. It has a wide applicable fields, for example, unmanned stations, remote monitoring, forest protection, mechanical and electrical equipment to achieve the real reliable control throughout the day, farmland irrigation, oxygen increasing fish ponds, the sea fish raft operation, automatic to feed animals, and other automation applications. Specifications: Model: CL1-GSM GSM Frequency Band:850/900/1800/1900 Mhz Power adapter plug: EU plug Output current: 10A Output voltage: 10A/220V 15A/125V/30V Maximum output power: 2200W (half of the inductive load) Input voltage: 9-12V DC Input power: 0.9W Product certification: CE, ROHS Item Size: Approx. 115mm x 70mm x 30mm / 4.53'' x 2.75'' x 1.18'' Package Weight: Approx. 290g Package Included: 1 x Switch Controller 1 x Power Adapter Cable 1 x Antenna Note: 1. It is easy to install but professional installation is highly recommended. 2. Dear customers,