... volt battery2.Operating distance: 25 metres3.Transmission Frequency: 433.92MHz, 418MHz, 315MHz4.Max . Loading on socket Unit: 1,000watt/2000 watt5.working ... Operation instruction 1.Pulg the power input end of remote socket into a grounded 3-prong outlet, Be sure the ... that connection is reliable. 2.The indicating LED of remote socket will be lighting up after successful connection, pls check connection ...