... doors, panes of glass or thin walls.SPECIFICATION: Power Source 110-130V/AC 220-240V/AC Detection Range 360° Power Frequency ... Load220-240V/AC: 800W (incandescent lamp) 200W (energy-saving lamp) 110-130V/AC: 1200W (incandescent lamp) 300W (energy-saving lamp) Power ... the power and test it automatic Microwave Sensor ST701 in 110-130V/AC