The On/Off Inline Relay Switch (3000w) is designed to work with devices such as blinds, curtain openers and garage doors. It can also switch lighting circuits up to 3000w . Using the innovative technology you can easily control the relay either automatically or remotely using any controller including our smartphone applications when used with a WiFi-Link (sold separately). The Inline Relay switch is designed to switch mains rated resistive loads and is rated at up to 3000w. It is mains powered and includes a built-in time delay switch.