 Yes, most people do smart thermostats just for the heating and cooling, and that's going to help them save probably up to 20% on their heating and cooling costs per year just by utilizing a smart thermostat. But also, as you add lighting and appliances to it, you're going to increase the savings throughout the year from the energy use that you'll be able to control remotely, if need be, or just set it appropriately and the dollars that you'll be saving it.