It detects the motion of human beings by thermal mapping of the atmosphere and whenever motion is detected the lights are turned on. It can be used in any restricted area to catch any trespasser and can also be applied in household purposes like store rooms in order to avoid any accident or stumbling due to obstacles. The whole thing has been executed analogously without the use of microcontroller to make it cost-effective. In this project, a PIR motion sensor, Light Dependent Resistor(LDR), 555 timer, relay module and a bulb have been used.