... , 3.Radio controlled sockets,range up to 40m Remote Control Light Dimmer ZTC-LS316A 1V11. No installation is needed ... expandable.6. Battery: (1*12V, 23A) for the radio remote control is included.7. Transmission frequency: 433.93MHz, 8. Approvals: ... England, French, U.S.Italy, Australia-types could be chosenTechnical Parameters of ZTC-LS316A Remote Control Outlet:Model:ZTC-LS316ATransmission range ...