A device (e.g., a security device, a video doorbell, a security camera, etc.) may receive an input voltage and based on the input voltage may determine the input power available to the device. The device may access various power level requirements associated with one or more functional components associated with the device. The device may then determine one or more functional components to activate or set to an active status on the device based on the input power available to the device, component power level requirements for one or more of the functional components, and other factors such as priority levels and preferences.