... .Safe voltage design, safer than any other switches.Switch touch control + remote control, more technological.Applicable to all the common lampsEasy installation ... (No freeze)Operating HumidityLess than 90%Transmitting Frequency433.92MHzRemote DistanceRemote control: 30m+ReliableFor 20+ years, and 300,000 times operationDimension86x86x37mm Available ...