An example electronic deterrence device includes a housing, and one or more first and second indicator lights. The one or more second indicator lights, when illuminated, illuminate a textual message visible from a front of the housing. The electronic deterrence device also includes a power supply, a switch, and a microcontroller. The microcontroller is configured to determine a position of the switch; responsive to determining that the switch is in a first position, disable the one or more first and second indicator lights; responsive to determining that the switch is in a second position, illuminate the one or more first and second indicator lights using electrical power delivered from the power supply; and responsive to determining that the switch is in a third position, illuminate the one or more first and second indicator lights using electrical power delivered from the power supply based on an ambient condition.