... The advantages are high efficiency, Low-power consumption, Long operating life, no radiation, environment protective, energy saving and anti ... AA alkalescence batteries are applied. 10 hrs while operating continuously, 28hrs while operating interruptedly. 20 seconds for delaying illuminance, and ... the position of AUTO. 4. Notes4.1 Storage temp.:-2580. Operating temp.:-550.4.2 Take out the batteries if ...