Insteon SwitchLinc Remote Control Dimmer, Dual-Band, Works with Alexa Works with Amazon Alexa to support dimming through voice control (hub required, Alexa device and Insteon hub sold separately) Save money on bills by dimming your lights with this easy-to-install dimmer Create elegant whole-house lighting scenes in minutes Control this dimmer remotely from anywhere. Programmable on-level and fade on/off speed Doubles as an Access Point. Works only with Insteon Systems Operating frequency : 50/60Hz