Easy to install, easy to use smart thermostats. Meet LUX/GEO – a smart, easy to install, easy to use thermostat. Lux know life is busy – work, errands, kids… GEO can keep up with it all! GEO is loaded with features to help you stay comfortable and save money whether you’re home or away! GEO offers you the best of a smart thermostat in an attractive and affordable design.