A surveillance and lighting system utilizing an existing electricity wiring for its power supply includes imaging and lighting devices and a network video recorder (NVR) wirelessly coupled with the imaging and lighting devices. Each imaging and lighting device has an imaging member operably in an on-state or an off-state; a lighting member operably in an on-state or an off-state; a microcontroller unit coupled with the imaging member and the lighting member for controlling operations of each of the imaging member and the lighting member in a respective state in accordance with an operation mode of said imaging and lighting device, and a power module coupled between the microcontroller unit and a standard AC power source for converting an AC power of the standard AC power source to at least one DC power.