This battery powered security light uses two light heads to provide up to 500 lumens of white light for approximately 10 seconds when movement is detected. The built-in motion sensor detects movement from approximately 6 metres away with an approximate 90 degree detection area when installed at a height of 2 metres. Choose automatic motion-activated lighting at 500 lumens or continuous lighting at approximately 300 lumens when constant illumination is required. Direct the light where you need it with approximately 180 degrees horizontal and 60 degrees vertical light-head adjustment, while the motion sensor can be adjusted approximately 270 degrees horizontally. The sensor and light head can be adjusted for flexible positioning, and the supplied accessories allow direct wall mounting or strap mounting to a suitable post. The light requires 3 x AA alkaline batteries, or alternatively 3 x AA 1500 mAh rechargeable batteries, which are not included.