Smartenit 4040B ZBMLC30 40A Load Controller, Gray When used with a compatible smart hub, such as the Smarten it Harmony G2 (sold separately), you will have access to turn on/off large appliances and monitor energy consumption with your smart phone from anywhere in the world! The normally open configuration of ZBMLC30 is ideal for controlling two different loads such as lighting, heaters, pool pumps and such loads that should failsafe in the OFF position Set up schedules in the Harmony G2 smart hub to run your pool pump when it's most energy efficient and least costly Works with Alexa and Google Home through the Smarten it Harmony G2 smart hub Set up macros in a smart hub to turn on/off the ZBMLC30 based on the status of other smart devices in the network.