8 PCS imported SEL super brightness Array IR LED, effective night vision distance is 100~125 meters. The rate of converte electricity to light up to 35%, more effective and save power, ensure the lifetime. Far distance or less distance only 4 LED works, less LED but much better effect.  ******  High speed dome: Horizontal rotate for 360°, 220°/sec, auto flip, vertical rotate from 3°~90°, 100°/sec. ****** Function: 128 accurate preset positions, 2 pattern scan routes, 4 tour routes, 1 fixed monitoring position, display PTZ direction and zoom number, and temperature. English OSD menu for operation. ****** 7" Size.