Various arrangements are presented for controlling a night light feature of a hazard detector. A user interface application executed on a mobile device may output, a graphical interface that provides an option to enable a night light feature of the hazard detector. The application may transmit data indicative of the night light feature being enabled and of an associated user account to a computer server system. The computer server system may receive and store data indicative of the night light feature being enabled and of the user account. The hazard detector may receive from the computer server system data indicative of the night light feature of the hazard detector being enabled by the application. The hazard detector may enable the plurality of LEDs to provide illumination in response to the received data indicative of the night light feature of the hazard detector being enabled by the application.