This in-wall dual relay switch module is a transceiver which This in-wall dual relay switch module is a transceiver which is a Z-Wave PlusTM enabled device and is fully compatible is a Z-Wave PlusTM enabled device and is fully compatible with any Z-WaveTM enabled network. Mini size design let with any Z-WaveTM enabled network. Mini size design let the module can easily hide itself into the wall box and that the module can easily hide itself into the wall box and that will be good for the house decoration. will be good for the house decoration. There are many kind of application by using the module to There are many kind of application by using the module to switch AC power On and Off, one main application is the switch AC power On and Off, one main application is the light control. The new smart relay calibration technology light control. The new smart relay calibration technology can reduce the inrush current caused by the load and let the can reduce the inrush current caused by the load and let the module work perfectly with many kind of light like module work perfectly with many kind of light like incandescent, fluorescent and LED light. incandescent, fluorescent and LED light. This in-wall switch module is able to detect Instant power This in-wall switch module is able to detect Instant power wattage and overload current (7.5A with resistive load) of wattage and overload current (7.5A with resistive load) of connected light or appliances. When detecting overload connected light or appliances. When detecting overload state, the Module will be disabled and its On/Off button will state, the Module will be disabled and its On/Off button will be lockout of which LED will flash quickly. However, be lockout of which LED will flash quickly. However, disconnect and re-connect the Module will reset its overload disconnect and re-connect the Module will reset its overload condition to normal status. condition to normal status.