The energy-wasting PIR sensor for lighting responds quickly and reduces waste by sensing motion while turning on the lighting system only when necessary. The lighting is quickly turned on as motion is detected, and then, in due course, automatically switched off. These sensors operate best where savings on costs are the primary focus, such as in public areas and commercial infrastructure. This sensor’s quicker than average response time helps save money, unnecessary lighting expenditures, and, energy. An effective answer to increasing energy efficiency of the lighting system is provided by the fast reacting PIR sensor for lighting.