IoT has taken over in every aspect of our daily lives. Domains stretch across a vast horizon, starting from home appliances, electronic devices, home systems to industrially manufactured products such as robots, equipment, and even automobiles. Implementation of IoT in automobiles such as self-driving cars is such a domain that is risen in the past few years by a notch but often one area has not been explored to such an extent, and hence poses as a flaw in the manufacturing of vehicles are the headlamps. As per statistics, it has been found that unawareness of the driver and incorrect selection of beam during driving has posed as a major security threat to the traveler himself and the surrounding cars leading to a lot of accidents and in turn raising concern. This paper offers a comparative study of the existing technologies deployed in automatic headlight dimmer systems along with pondering upon the need of automatically controlled systems to switch headlights in automobiles, what are the foundation grounds for headlamp alteration systems, what are the detrimental effects to safety when any driver uses the wrong beam in unsupportable conditions in a vehicle.