High Sensitivity and Save Energy: 120 degrees cone angle detecting range and detecting distance is up to 5-7m, high and stable sensitivity; Output voltage is equal to input voltage, low power consumption, effectively save energy and improve efficiency Widely Applicable: The switch for led with PIR Infrared Motion sensor detector to achieve electrical automatic control functions; Widely used on the motion-activated lighting, LED strips security system, automatic sensory device and more Adjustable Delay Range: 2-360 seconds adjustable delay range for you to choose a suitable time, more humanize Working Principle: PIR motion sensor can detect human movement by detecting infrared ray emitted by human body Mini and Compact: The sensor switch led is mini and compact so as to put it without destroying home decoration; The PIR sensor switch can be used in corridors, bathrooms, basements, warehouses, garages and other places